Dev APIs / SMS, voice and SendGrid email / Twilio

Twilio

SEV 2 · BLEEDING · 2d 13h

Since Sep 2026 · 75 incidents · status.twilio.com · checked just now

User reportsVisitors who said it's down for them, per hour over 24 hours. Not from the status page. Never counted in grades.
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GradeDLast 45 days
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Happening now
Oct 27, 2026ongoingSEV 2
Voice Call Failures From Twilio Phone Numbers to GermanyVoice calls from Twilio numbers to German mobile and fixed networks are failing; the update does not say how many calls are hit.AI-graded · one location · CARRIER NETWORK - Voice, Europe
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - Voice, Europe had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
    Voice calls from Twilio numbers to German mobile and fixed networks are failing; the update does not say how many calls are hit.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
1 update
  1. 09:00 UTC · investigating
    Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to network subscribers in Germany. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
Source
Oct 27, 2026ongoingSEV 2
Voice Call Failures From a Subset of Twilio Phone Numbers to Multiple Networks in GermanyVoice calls from a subset of Twilio numbers failed to several German networks; still under investigation at posting.AI-graded · one location · CARRIER NETWORK - Voice, Europe
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - Voice, Europe had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
    Voice calls from a subset of Twilio numbers failed to several German networks; still under investigation at posting.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
1 update
  1. 08:37 UTC · investigating
    Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to network subscribers on multiple networks in Germany. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
Source
Oct 26, 2026ongoingSEV 2
SMS Delivery Failures and Delays Between a Subset of Twilio Phone Numbers and Multiple Networks in BrazilSome Twilio Brazil phone numbers experienced SMS delivery failures and delays to subscribers on multiple Brazilian networks. Twilio identified the cause and is working on a fix; no resolution has been posted yet.AI-graded · one location · CARRIER NETWORK - SMS, Latin America
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS, Latin America had degraded performance
  2. CLAUDE · SEV 2 · SUBSET · MEDIUM CONFIDENCE
    SMS delivery from a subset of Twilio Brazil numbers to multiple Brazilian networks failed or was delayed; ongoing, not yet resolved.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
6 updates
  1. 23:55 UTC · investigating
    Twilio customers may be experiencing SMS delivery failures and delays between a subset of Twilio Phone Numbers and network subscribers on multiple networks in Brazil. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 00:03 UTC · identified
    Twilio customers may be experiencing SMS delivery failures and delays between a subset of Twilio Brazil Phone Numbers and network subscribers on multiple networks in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 00:05 UTC · identified
    Twilio customers may be experiencing SMS delivery failures and delays between a subset of Twilio Brazil Phone Numbers and multiple networks in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  4. 01:05 UTC · identified
    Twilio customers may be experiencing SMS delivery failures between a subset of Twilio Phone Numbers and network subscribers on multiple networks in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  5. 03:11 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures between a subset of Twilio Phone Numbers and network subscribers on multiple networks in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  6. 07:17 UTC · identified
    Twilio customers may be experiencing SMS delivery failures and delays between a subset of Twilio Phone Numbers and network subscribers on multiple networks in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
Source
Oct 26, 2026ongoingSEV 2
SMS Delivery Delays From a Subset of Twilio Short Codes to Docomo Pacific United StatesCustomers sending SMS through a subset of Twilio Short Codes saw delivery delays and some failures to Docomo Pacific subscribers in the United States. Twilio identified the cause and is working on a fix; the incident is still open with no resolution time given.AI-graded · one model or feature · CARRIER NETWORK - SMS Short Code, North America
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS Short Code, North America had degraded performance
  2. CLAUDE · SEV 2 · SINGLE · MEDIUM CONFIDENCE
    SMS from a subset of Twilio Short Codes to Docomo Pacific subscribers in the US is delayed and sometimes failing; other carriers are unaffected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
5 updates
  1. 19:50 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Short Codes to Docomo Pacific network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 19:57 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Short Codes to Docomo Pacific network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 20:57 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Docomo Pacific network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 22:58 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Docomo Pacific network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  5. 03:04 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Docomo Pacific network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
Source
Oct 26, 2026ongoingSEV 2
MMS Delivery Delays and Failures from a Subset of Twilio Long Codes to Cellcom United StatesSome Twilio long-code MMS messages to Cellcom United States subscribers were delayed or failed starting 2026-10-26 20:29 UTC. Cause identified as carrier-side; recovery observed at 06:58 UTC on 2026-10-27 and monitoring continues.AI-graded · one model or feature · CARRIER NETWORK - MMS Long Code, North America +1
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - MMS Long Code, North America had degraded performance
  2. CLAUDE · SEV 2 · SINGLE · MEDIUM CONFIDENCE · BACK AFTER 10H 30M
    MMS delivery delayed and failing from a subset of Twilio long codes to Cellcom US subscribers; other carriers unaffected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
7 updates
  1. 20:29 UTC · investigating
    Twilio customers may be experiencing MMS delivery delays and failures from a subset of Twilio Long Codes to Cellcom network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 20:34 UTC · identified
    Twilio customers may be experiencing MMS delivery delays and failures from a subset of Twilio Long Codes to Cellcom network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 21:34 UTC · identified
    Twilio customers may be experiencing MMS delivery delays and failures from a subset of Twilio Long Codes to Cellcom network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 23:35 UTC · identified
    Twilio customers may be experiencing MMS delivery delays and failures from a subset of Twilio Long Codes to Cellcom network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  5. 03:35 UTC · identified
    Twilio customers may be experiencing MMS delivery delays and failures from a subset of Twilio Long Codes to Cellcom network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
  6. 06:58 UTC · monitoring
    We have observed a recovery in MMS delivery from a subset of Twilio Long Codes to Cellcom network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  7. 08:59 UTC · monitoring
    We have observed a recovery in MMS delivery from a subset of Twilio Long Codes to Cellcom network subscribers in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
Source
Oct 26, 2026ongoingSEV 2
SMS Delivery Delays and Failures from Twilio to Mauritel MauritaniaTwilio SMS messages to Mauritel subscribers in Mauritania experienced delivery delays and failures, with delayed delivery receipts. The cause was identified, and the update history shows no resolution yet.AI-graded · one location · CARRIER NETWORK - SMS, Middle East & Africa
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS, Middle East & Africa had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
    SMS delivery to Mauritel subscribers in Mauritania was delayed and failing; delivery receipts were also late. Limited to one carrier in one country.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
6 updates
  1. 14:20 UTC · investigating
    Twilio customers may be experiencing SMS delivery receipt delays and SMS delivery failures from Twilio to Mauritel network subscribers in Mauritania. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 14:39 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Mauritel network subscribers in Mauritania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 15:39 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Mauritel network subscribers in Mauritania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 17:40 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Mauritel network subscribers in Mauritania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  5. 21:45 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Mauritel network subscribers in Mauritania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
  6. 05:51 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Mauritel network subscribers in Mauritania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.
Source
Oct 26, 2026ongoingSEV 2
Voice Call Failures from Twilio Phone Numbers to RomaniaTwilio voice calls from Twilio Phone Numbers to Digi Mobil subscribers in Romania failed from 13:09 UTC on 26 October. The cause was identified and a fix was in progress; the incident was still open with no resolution time given in the final update.AI-graded · one location · CARRIER NETWORK - Voice, Europe
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - Voice, Europe had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
    Voice calls from Twilio numbers to Digi Mobil subscribers in Romania failed; other destinations were not described as affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
6 updates
  1. 13:09 UTC · investigating
    Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to Digi Mobil network subscribers in Romania. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 13:31 UTC · identified
    Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to Digi.Mobil network subscribers in Romania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 14:34 UTC · identified
    Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to Digi.Mobil network subscribers in Romania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 16:40 UTC · identified
    Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to network subscribers in Romania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  5. 20:40 UTC · identified
    Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to network subscribers in Romania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
  6. 04:43 UTC · identified
    Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to Digi.Mobil network subscribers in Romania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.
Source
Oct 24, 2026ongoingSEV 2
MMS Delivery Delays From a Subset of Twilio Long Codes to C-Spire United StatesSome MMS messages sent via a subset of Twilio long codes, short codes and toll-free numbers were delivered late to C-Spire subscribers in the United States. The cause was identified, and a recovery was observed on 27 October; monitoring continued.AI-graded · one location · CARRIER NETWORK - MMS Long Code, North America +2
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - MMS Long Code, North America had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · HIGH CONFIDENCE
    MMS messages from a subset of Twilio numbers to C-Spire subscribers in the US were delayed for about 60 hours; other carriers were not reported affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
13 updates
  1. 19:28 UTC · investigating
    Twilio customers may be experiencing MMS delivery delays from Twilio to C-Spire network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 20:29 UTC · investigating
    Twilio customers may be experiencing MMS delivery delays from Twilio to C-Spire network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
  3. 22:30 UTC · investigating
    Twilio customers may be experiencing MMS delivery delays from Twilio to C-Spire network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 4 hours or as soon as more information becomes available.
  4. 02:36 UTC · investigating
    Twilio customers may be experiencing MMS delivery delays from Twilio to C-Spire network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 8 hours or as soon as more information becomes available.
  5. 10:38 UTC · investigating
    Twilio customers may be experiencing MMS delivery delays from Twilio to C-Spire network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 16 hours or as soon as more information becomes available.
  6. 02:44 UTC · investigating
    Twilio customers may be experiencing MMS delivery delays from Twilio to C-Spire network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 24 hours or as soon as more information becomes available.
  7. 07:02 UTC · identified
    Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Longcodes to C-Spire network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  8. 08:09 UTC · identified
    Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Longcodes to C-Spire network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  9. 10:12 UTC · identified
    Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Longcodes to C-Spire network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  10. 14:13 UTC · identified
    Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Longcodes to C-Spire network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
  11. 22:20 UTC · identified
    Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Phone Numbers to C-Spire network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.
  12. 05:58 UTC · monitoring
    We have observed a recovery in MMS delivery from a subset of Twilio Long Codes to C-Spire network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  13. 08:04 UTC · monitoring
    We have observed a recovery in MMS delivery from a subset of Twilio Long Codes to C-Spire network subscribers in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
Source
9 components affected9 degradedCARRIER NETWORK 8 · PROGRAMMABLE MESSAGING 1
All 9
  • Lookup Line Type Intelligence [Legacy API]degraded
  • MMS Toll-Free, North Americadegraded
  • MMS, APACdegraded
  • SMS Short Code, North Americadegraded
  • SMS, Latin Americadegraded
  • SMS, Middle East & Africadegraded
  • Voice, APACdegraded
  • Voice, Europedegraded
  • RCS Messagingdegraded

Overview

30d90d1y
Admitted uptimeCustomer time not hit, by the provider's own account. Regional and partial incidents count in part.
98.112%Grade D
IncidentsEverything posted on the status page except scheduled maintenance.
750 Sev 1
Fully downMost customers down, by the provider's own account.
0m
Median fixMedian time to resolve. Half of incidents were fixed faster.
9h 31m
LongestLongest Sev 1–2 incident, start to resolved.
13d 21h
Since lastTime since the last counted incident was resolved.
ongoing

By area

DProduction
66INCIDENTS
30d 0hAFFECTED
Your users are hit: apps, APIs, databases, inference
Worst, 30d
SEV 2Oct 23, 2026 · 6h 43m · regionalSMS Delivery Receipt Delays from Twilio to Multiple Networks in United States and Canada
SEV 2Oct 17, 2026 · 5h 03m · regional5300 Errors on Singapore Client Edge
SEV 2Oct 26, 2026 · ongoing · one locationSMS Delivery Failures and Delays Between a Subset of Twilio Phone Numbers and Multiple Networks in Brazil
Most hit
CARRIER NETWORK - SMS, Latin America14
CARRIER NETWORK - SMS, Middle East & Africa8
CARRIER NETWORK - SMS, Europe7
CARRIER NETWORK - Voice, Europe6
66 in the last 6 months.
BShipping
9INCIDENTS
39h 54mAFFECTED
You can't deploy, build or manage: CI, CLI, dashboard, auth, billing
Worst, 30d
SEV 3Oct 20, 2026 · 9h 50m · some customersWhatsApp Embedded Signup Configuration Failures
SEV 3Oct 22, 2026 · 5h 14m · some customersHosted Number Verification Calls not Reaching Customers
SEV 3Oct 21, 2026 · 1h 53mCustomer's Unable to Create New Requests for Hosting and Porting
Most hit
PHONE NUMBERS3
PROGRAMMABLE MESSAGING - WhatsApp Messaging2
SendGrid Partners1
CARRIER NETWORK - Verify Silent Network Auth1
9 in the last 6 months.
CleanSev 3–4Sev 1–2No data

Trend, last 12 months

75 in the last 6 months.

Severity mix

Sev 1 · Lights outProd site, API or database down, or data loss0
Sev 2 · BleedingProd degraded or partly down66
Sev 3 · Can't shipCan't deploy, build or manage it8
Sev 4 · PapercutDocs, status page, slow dashboard1

When it breaks

Start times, last 12 months, UTC.

What breaks

CARRIER NETWORKSMS, Latin America14 incidents
CARRIER NETWORKSMS, Middle East & Africa8 incidents
CARRIER NETWORKSMS, Europe7 incidents
CARRIER NETWORKVoice, Europe6 incidents
CARRIER NETWORKSMS Short Code, North America5 incidents
CARRIER NETWORKMMS Long Code, North America5 incidents

Where it breaks

Last 12 monthsPlaces named on the status page: cloud regions, cities, countries, data centres. An incident naming only a broad area (Europe, APAC) is counted under the map, not pinned.
5 down now · 32 places · 12 not pinned
Australia: 2 incidents · TwilioCanada: 2 incidents · TwilioColombia: 2 incidents · TwilioCosta Rica: 2 incidents · TwilioCzechia (Czech Republic): 2 incidents · TwilioIsrael: 2 incidents · TwilioNetherlands: 2 incidents · TwilioNigeria: 2 incidents · TwilioPuerto Rico: 2 incidents · TwilioSouth Africa: 2 incidents · TwilioUnited Kingdom: 2 incidents · TwilioChile: 1 incident · TwilioChina: 1 incident · TwilioDenmark: 1 incident · TwilioFrance: 1 incident · TwilioIndia: 1 incident · TwilioItaly: 1 incident · TwilioMali: 1 incident · TwilioMexico: 1 incident · TwilioNicaragua: 1 incident · TwilioPakistan: 1 incident · TwilioPortugal: 1 incident · TwilioSingapore: 1 incident · TwilioSweden: 1 incident · TwilioThailand: 1 incident · TwilioTurkey: 1 incident · TwilioUnited Arab Emirates: 1 incident · TwilioUnited States: down now, 12 incidents · TwilioBrazil: down now, 10 incidents · TwilioGermany: down now, 2 incidents · TwilioRomania: down now, 2 incidents · TwilioMauritania: down now, 1 incident · Twilio
Sev 1–2 time by place, 12 monthsTime with a Sev 1 or 2 open that names the place, any provider. Overlaps count once.
Australia7d 3h
China7d 0h
Brazil6d 17h
United States5d 1h
India4d 20h
Italy3d 20h

Communication

Updates eachStatus page updates per incident, on average.
8.0Last 12 months
Update gapMedian time between status page updates during an incident.
2h 00mLast 12 months
PostmortemsSev 1–2 incidents with a published write-up.
0 of 66Sev 1–2

Incident history

Show all 75
Oct 26–27, 2026ongoingSEV 2
Voice Call Failures from Twilio Phone Numbers to Romania3 incidents
  1. Mon, Oct 26 13:09 UTCongoingSEV 2
    Voice Call Failures from Twilio Phone Numbers to RomaniaTwilio voice calls from Twilio Phone Numbers to Digi Mobil subscribers in Romania failed from 13:09 UTC on 26 October. The cause was identified and a fix was in progress; the incident was still open with no resolution time given in the final update.AI-graded · one location · CARRIER NETWORK - Voice, Europe
    Why this grade
    1. RULES · SEV 2
      Sev 2 because CARRIER NETWORK - Voice, Europe had degraded performance
    2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
      Voice calls from Twilio numbers to Digi Mobil subscribers in Romania failed; other destinations were not described as affected.
    3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
    6 updates
    1. 13:09 UTC · investigating
      Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to Digi Mobil network subscribers in Romania. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
    2. 13:31 UTC · identified
      Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to Digi.Mobil network subscribers in Romania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
    3. 14:34 UTC · identified
      Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to Digi.Mobil network subscribers in Romania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
    4. 16:40 UTC · identified
      Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to network subscribers in Romania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
    5. 20:40 UTC · identified
      Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to network subscribers in Romania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
    6. 04:43 UTC · identified
      Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to Digi.Mobil network subscribers in Romania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.
    Source
  2. Tue, Oct 27 08:37 UTCongoingSEV 2
    Voice Call Failures From a Subset of Twilio Phone Numbers to Multiple Networks in GermanyVoice calls from a subset of Twilio numbers failed to several German networks; still under investigation at posting.AI-graded · one location · CARRIER NETWORK - Voice, Europe
    Why this grade
    1. RULES · SEV 2
      Sev 2 because CARRIER NETWORK - Voice, Europe had degraded performance
    2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
      Voice calls from a subset of Twilio numbers failed to several German networks; still under investigation at posting.
    3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
    1 update
    1. 08:37 UTC · investigating
      Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to network subscribers on multiple networks in Germany. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
    Source
  3. Tue, Oct 27 09:00 UTCongoingSEV 2
    Voice Call Failures From Twilio Phone Numbers to GermanyVoice calls from Twilio numbers to German mobile and fixed networks are failing; the update does not say how many calls are hit.AI-graded · one location · CARRIER NETWORK - Voice, Europe
    Why this grade
    1. RULES · SEV 2
      Sev 2 because CARRIER NETWORK - Voice, Europe had degraded performance
    2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
      Voice calls from Twilio numbers to German mobile and fixed networks are failing; the update does not say how many calls are hit.
    3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
    1 update
    1. 09:00 UTC · investigating
      Twilio customers may be experiencing voice call failures from Twilio Phone Numbers to network subscribers in Germany. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
    Source
Oct 27, 20263h 17mSEV 2
SMS Delivery Receipt Delays from a Subset of Twilio Long Codes to AT&T United StatesFrom 03:53 to 07:10 UTC on 27 October, SMS delivery receipts from a subset of Twilio long codes to AT&T US subscribers were delayed. Message delivery could still succeed. The cause was identified and receipts recovered by 05:09 UTC.AI-graded · one location · CARRIER NETWORK - SMS Long Code, North America
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS Long Code, North America had degraded performance
  2. CLAUDE · SEV 2 · SUBSET · HIGH CONFIDENCE
    SMS delivery receipts were delayed for a subset of Twilio long codes sending to AT&T in the US; messages still delivered.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
5 updates
  1. 03:53 UTC · investigating
    Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Long Codes to AT&T network subscribers in the United States. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 04:53 UTC · investigating
    Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Long Codes to AT&T network subscribers in the United States. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 2 hours or as soon as more information becomes available.
  3. 05:09 UTC · identified
    Twilio customers may be experiencing SMS delivery receipt delays from a subset of Twilio Long Codes to AT&T network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.
  4. 05:09 UTC · monitoring
    We have observed a recovery in SMS delivery receipts from a subset of Twilio Long Codes to AT&T network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  5. 07:10 UTC · resolved
    The incident has been resolved and SMS delivery receipts from a subset of Twilio Long Codes to AT&T network subscribers in the United States are operating normally.
Source
Oct 27, 20263h 43mSEV 2
SMS Delivery Delays and Failures between a Subset of Twilio Long Codes and Multiple Networks in South AfricaSMS delivery between a subset of Twilio Long Codes and several South African mobile networks was delayed and some messages failed from about 01:34 to 05:17 UTC on 27 October. Twilio identified the cause and resolved it; SMS delivery returned to normal on affected networks.AI-graded · one location · CARRIER NETWORK - SMS, Middle East & Africa
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS, Middle East & Africa had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · HIGH CONFIDENCE
    SMS delivery delays and failures for a subset of Long Codes to multiple South African networks for about 3.7 hours.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
5 updates
  1. 01:34 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays between a subset of Twilio Long Codes and multiple networks in South Africa. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 01:40 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures between a subset of Twilio Long Codes and network subscribers on multiple networks in South Africa. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 02:40 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures between a subset of Twilio Long Codes and network subscribers on multiple networks in South Africa. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 03:15 UTC · monitoring
    We have observed a recovery in SMS delivery between a subset of Twilio Long Codes and network subscribers on multiple networks in South Africa and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  5. 05:17 UTC · resolved
    The incident has been resolved and SMS delivery between a subset of Twilio Long Codes and network subscribers on affected networks in South Africa is operating normally.
Source
Oct 25–26, 2026ongoingSEV 2
SMS Delivery Delays and Failures from Twilio to Claro Brazil and Puerto Rico2 incidents
  1. Sun, Oct 25 12:47 UTC22h 22mSEV 2
    SMS Delivery Delays and Failures from Twilio to Claro Brazil and Puerto RicoTwilio SMS messages to Claro network subscribers in Brazil and Puerto Rico were delayed or failed from October 25 to October 26. Our team identified the cause and worked on a fix; the provider later reported SMS delivery operating normally.AI-graded · one location · CARRIER NETWORK - SMS, Latin America
    Why this grade
    1. RULES · SEV 2
      Sev 2 because CARRIER NETWORK - SMS, Latin America had degraded performance
    2. CLAUDE · SEV 2 · REGIONAL · HIGH CONFIDENCE
      SMS delivery to Claro subscribers in Brazil and Puerto Rico was delayed and failing for about 22 hours; other networks were fine.
    3. Claude Haiku 5.5 · prompt v11 · Oct 26, 2026 · Raw record
    10 updates
    1. 12:47 UTC · investigating
      Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Claro network subscribers in Brazil. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
    2. 13:45 UTC · identified
      Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Claro network subscribers in Brazil and Puerto Rico. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
    3. 14:45 UTC · identified
      Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Claro network subscribers in Brazil and Puerto Rico. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
    4. 16:46 UTC · identified
      Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Claro network subscribers in Brazil and Puerto Rico. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
    5. 20:46 UTC · identified
      Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Claro network subscribers in Brazil and Puerto Rico. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
    6. 04:53 UTC · identified
      Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Claro network subscribers in Brazil and Puerto Rico. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.
    7. 07:41 UTC · identified
      Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Claro network subscribers in Brazil and Puerto Rico. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
    8. 08:41 UTC · identified
      Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Claro network subscribers in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
    9. 10:05 UTC · monitoring
      We have observed a recovery in SMS delivery from Twilio to Claro network subscribers in Brazil and Puerto Rico and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
    10. 11:09 UTC · resolved
      The incident has been resolved and SMS delivery from Twilio to Claro network subscribers in Brazil and Puerto Rico is operating normally.
    Source
  2. Mon, Oct 26 23:55 UTCongoingSEV 2
    SMS Delivery Failures and Delays Between a Subset of Twilio Phone Numbers and Multiple Networks in BrazilSome Twilio Brazil phone numbers experienced SMS delivery failures and delays to subscribers on multiple Brazilian networks. Twilio identified the cause and is working on a fix; no resolution has been posted yet.AI-graded · one location · CARRIER NETWORK - SMS, Latin America
    Why this grade
    1. RULES · SEV 2
      Sev 2 because CARRIER NETWORK - SMS, Latin America had degraded performance
    2. CLAUDE · SEV 2 · SUBSET · MEDIUM CONFIDENCE
      SMS delivery from a subset of Twilio Brazil numbers to multiple Brazilian networks failed or was delayed; ongoing, not yet resolved.
    3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
    6 updates
    1. 23:55 UTC · investigating
      Twilio customers may be experiencing SMS delivery failures and delays between a subset of Twilio Phone Numbers and network subscribers on multiple networks in Brazil. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
    2. 00:03 UTC · identified
      Twilio customers may be experiencing SMS delivery failures and delays between a subset of Twilio Brazil Phone Numbers and network subscribers on multiple networks in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
    3. 00:05 UTC · identified
      Twilio customers may be experiencing SMS delivery failures and delays between a subset of Twilio Brazil Phone Numbers and multiple networks in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
    4. 01:05 UTC · identified
      Twilio customers may be experiencing SMS delivery failures between a subset of Twilio Phone Numbers and network subscribers on multiple networks in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
    5. 03:11 UTC · identified
      Twilio customers may be experiencing SMS delivery delays and failures between a subset of Twilio Phone Numbers and network subscribers on multiple networks in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
    6. 07:17 UTC · identified
      Twilio customers may be experiencing SMS delivery failures and delays between a subset of Twilio Phone Numbers and network subscribers on multiple networks in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
    Source
Oct 26, 2026ongoingSEV 2
SMS Delivery Delays From a Subset of Twilio Short Codes to Docomo Pacific United StatesCustomers sending SMS through a subset of Twilio Short Codes saw delivery delays and some failures to Docomo Pacific subscribers in the United States. Twilio identified the cause and is working on a fix; the incident is still open with no resolution time given.AI-graded · one model or feature · CARRIER NETWORK - SMS Short Code, North America
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS Short Code, North America had degraded performance
  2. CLAUDE · SEV 2 · SINGLE · MEDIUM CONFIDENCE
    SMS from a subset of Twilio Short Codes to Docomo Pacific subscribers in the US is delayed and sometimes failing; other carriers are unaffected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
5 updates
  1. 19:50 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Short Codes to Docomo Pacific network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 19:57 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures from a subset of Twilio Short Codes to Docomo Pacific network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 20:57 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Docomo Pacific network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 22:58 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Docomo Pacific network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  5. 03:04 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to Docomo Pacific network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
Source
Oct 24–26, 2026ongoingSEV 2
MMS Delivery Delays From a Subset of Twilio Long Codes to C-Spire United States2 incidents
  1. Sat, Oct 24 19:28 UTCongoingSEV 2
    MMS Delivery Delays From a Subset of Twilio Long Codes to C-Spire United StatesSome MMS messages sent via a subset of Twilio long codes, short codes and toll-free numbers were delivered late to C-Spire subscribers in the United States. The cause was identified, and a recovery was observed on 27 October; monitoring continued.AI-graded · one location · CARRIER NETWORK - MMS Long Code, North America +2
    Why this grade
    1. RULES · SEV 2
      Sev 2 because CARRIER NETWORK - MMS Long Code, North America had degraded performance
    2. CLAUDE · SEV 2 · REGIONAL · HIGH CONFIDENCE
      MMS messages from a subset of Twilio numbers to C-Spire subscribers in the US were delayed for about 60 hours; other carriers were not reported affected.
    3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
    13 updates
    1. 19:28 UTC · investigating
      Twilio customers may be experiencing MMS delivery delays from Twilio to C-Spire network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
    2. 20:29 UTC · investigating
      Twilio customers may be experiencing MMS delivery delays from Twilio to C-Spire network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
    3. 22:30 UTC · investigating
      Twilio customers may be experiencing MMS delivery delays from Twilio to C-Spire network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 4 hours or as soon as more information becomes available.
    4. 02:36 UTC · investigating
      Twilio customers may be experiencing MMS delivery delays from Twilio to C-Spire network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 8 hours or as soon as more information becomes available.
    5. 10:38 UTC · investigating
      Twilio customers may be experiencing MMS delivery delays from Twilio to C-Spire network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 16 hours or as soon as more information becomes available.
    6. 02:44 UTC · investigating
      Twilio customers may be experiencing MMS delivery delays from Twilio to C-Spire network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 24 hours or as soon as more information becomes available.
    7. 07:02 UTC · identified
      Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Longcodes to C-Spire network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
    8. 08:09 UTC · identified
      Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Longcodes to C-Spire network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
    9. 10:12 UTC · identified
      Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Longcodes to C-Spire network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
    10. 14:13 UTC · identified
      Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Longcodes to C-Spire network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
    11. 22:20 UTC · identified
      Twilio customers may be experiencing MMS delivery delays from a subset of Twilio Phone Numbers to C-Spire network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.
    12. 05:58 UTC · monitoring
      We have observed a recovery in MMS delivery from a subset of Twilio Long Codes to C-Spire network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
    13. 08:04 UTC · monitoring
      We have observed a recovery in MMS delivery from a subset of Twilio Long Codes to C-Spire network subscribers in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
    Source
  2. Mon, Oct 26 20:29 UTCongoingSEV 2
    MMS Delivery Delays and Failures from a Subset of Twilio Long Codes to Cellcom United StatesSome Twilio long-code MMS messages to Cellcom United States subscribers were delayed or failed starting 2026-10-26 20:29 UTC. Cause identified as carrier-side; recovery observed at 06:58 UTC on 2026-10-27 and monitoring continues.AI-graded · one model or feature · CARRIER NETWORK - MMS Long Code, North America +1
    Why this grade
    1. RULES · SEV 2
      Sev 2 because CARRIER NETWORK - MMS Long Code, North America had degraded performance
    2. CLAUDE · SEV 2 · SINGLE · MEDIUM CONFIDENCE · BACK AFTER 10H 30M
      MMS delivery delayed and failing from a subset of Twilio long codes to Cellcom US subscribers; other carriers unaffected.
    3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
    7 updates
    1. 20:29 UTC · investigating
      Twilio customers may be experiencing MMS delivery delays and failures from a subset of Twilio Long Codes to Cellcom network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
    2. 20:34 UTC · identified
      Twilio customers may be experiencing MMS delivery delays and failures from a subset of Twilio Long Codes to Cellcom network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
    3. 21:34 UTC · identified
      Twilio customers may be experiencing MMS delivery delays and failures from a subset of Twilio Long Codes to Cellcom network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
    4. 23:35 UTC · identified
      Twilio customers may be experiencing MMS delivery delays and failures from a subset of Twilio Long Codes to Cellcom network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
    5. 03:35 UTC · identified
      Twilio customers may be experiencing MMS delivery delays and failures from a subset of Twilio Long Codes to Cellcom network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
    6. 06:58 UTC · monitoring
      We have observed a recovery in MMS delivery from a subset of Twilio Long Codes to Cellcom network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
    7. 08:59 UTC · monitoring
      We have observed a recovery in MMS delivery from a subset of Twilio Long Codes to Cellcom network subscribers in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
    Source
Oct 26, 20262h 40mSEV 3
WhatsApp Sandbox Sending Configuration IssuesWhatsApp Sandbox sender configuration showed incorrect display names and preconfigured templates to users configuring WhatsApp senders. Engineers restored the display name and updated the templates, and the incident was resolved about 2.5 hours after it started.AI-graded · one model or feature · PROGRAMMABLE MESSAGING - WhatsApp Messaging
Why this grade
  1. RULES · SEV 2
    Sev 2 because PROGRAMMABLE MESSAGING - WhatsApp Messaging had degraded performance
  2. CLAUDE · SEV 3 · SINGLE · MEDIUM CONFIDENCE
    WhatsApp Sandbox sender configuration showed wrong display names and templates for about 2.5 hours; production messaging was not described as affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 26, 2026 · Raw record
3 updates
  1. 15:00 UTC · investigating
    We are investigating an issue with WhatsApp Sandbox configuration. Users may experience incorrect display names and preconfigured templates when configuring WhatsApp senders. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 17:37 UTC · monitoring
    Our engineers have mitigated the issue and are monitoring system performance. The WhatsApp Sandbox display name has been restored and the preconfigured templates have been updated. We will provide another update in 2 hours or as soon as more information becomes available.
  3. 17:40 UTC · resolved
    We have monitored and resolved the issue with WhatsApp Sandbox sender configuration. All services are now operating normally at this time.
Source
Oct 26, 2026ongoingSEV 2
SMS Delivery Delays and Failures from Twilio to Mauritel MauritaniaTwilio SMS messages to Mauritel subscribers in Mauritania experienced delivery delays and failures, with delayed delivery receipts. The cause was identified, and the update history shows no resolution yet.AI-graded · one location · CARRIER NETWORK - SMS, Middle East & Africa
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS, Middle East & Africa had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · MEDIUM CONFIDENCE
    SMS delivery to Mauritel subscribers in Mauritania was delayed and failing; delivery receipts were also late. Limited to one carrier in one country.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
6 updates
  1. 14:20 UTC · investigating
    Twilio customers may be experiencing SMS delivery receipt delays and SMS delivery failures from Twilio to Mauritel network subscribers in Mauritania. Our team is actively investigating this issue. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 14:39 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Mauritel network subscribers in Mauritania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 15:39 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Mauritel network subscribers in Mauritania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 17:40 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Mauritel network subscribers in Mauritania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  5. 21:45 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Mauritel network subscribers in Mauritania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
  6. 05:51 UTC · identified
    Twilio customers may be experiencing SMS delivery delays and failures from Twilio to Mauritel network subscribers in Mauritania. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.
Source
Oct 26, 202613h 58mSEV 2
SMS Delivery Delays from Twilio to Cellcom IsraelSMS messages from Twilio to Cellcom network subscribers in Israel were delivered late from about 00:49 to 14:47 UTC on 26 October. Twilio identified the cause and monitored recovery before resolving the incident. No specific cause was published in the updates.AI-graded · one model or feature · CARRIER NETWORK - SMS, Middle East & Africa
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS, Middle East & Africa had degraded performance
  2. CLAUDE · SEV 2 · SINGLE · HIGH CONFIDENCE
    SMS from Twilio to Cellcom Israel subscribers was delayed for about 14 hours; other networks were not reported affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 26, 2026 · Raw record
8 updates
  1. 00:49 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays from Twilio to Cellcom network subscribers in Israel. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 00:51 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Cellcom network subscribers in Israel. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 01:52 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Cellcom network subscribers in Israel. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 03:57 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Cellcom network subscribers in Israel. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  5. 06:04 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to Cellcom network subscribers in Israel and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  6. 08:04 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to Cellcom network subscribers in Israel and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
  7. 12:10 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to Cellcom network subscribers in Israel and are monitoring service stability. We will provide another update in 8 hours or as soon as more information becomes available.
  8. 14:47 UTC · resolved
    The incident has been resolved and SMS delivery from Twilio to Cellcom network subscribers in Israel is operating normally.
Source
Oct 25, 20264h 17mSEV 2
SMS Delivery Delays from Twilio to Telcel MexicoTwilio customers experienced SMS delivery delays to Telcel network subscribers in Mexico. Twilio reported a recovery after about two hours and marked the incident resolved about four hours after it started. No cause was given in the updates.AI-graded · one model or feature · CARRIER NETWORK - SMS, Latin America
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS, Latin America had degraded performance
  2. CLAUDE · SEV 2 · SINGLE · HIGH CONFIDENCE
    SMS delivery to Telcel subscribers in Mexico was delayed for about four hours; other carriers were not reported affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 26, 2026 · Raw record
4 updates
  1. 23:15 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays from Twilio to Telcel network subscribers in Mexico. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 00:16 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays from Twilio to Telcel network subscribers in Mexico. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
  3. 01:25 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to Telcel network subscribers in Mexico and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 03:32 UTC · resolved
    The incident has been resolved and SMS delivery from Twilio to Telcel network subscribers in Mexico is operating normally.
Source
Oct 25, 202612h 36mSEV 2
SMS Delivery Delays from Twilio to Telia SwedenTwilio customers saw SMS delivery delays to Telia network subscribers in Sweden starting 25 October 2026. Twilio investigated, observed recovery around 22:41 UTC, and resolved the incident the next day at 00:48 UTC. No cause was given.AI-graded · one location · CARRIER NETWORK - SMS, Europe
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS, Europe had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · HIGH CONFIDENCE
    SMS delivery from Twilio to Telia subscribers in Sweden was delayed for about 12 hours; other networks were not reported affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 26, 2026 · Raw record
6 updates
  1. 12:12 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays from Twilio to Telia network subscribers in Sweden. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 13:20 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays from Twilio to Telia network subscribers in Sweden. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
  3. 15:26 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays from Twilio to Telia network subscribers in Sweden. Our team is actively investigating this issue. We will provide another update in 4 hours or as soon as more information becomes available.
  4. 19:33 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays from Twilio to Telia network subscribers in Sweden. Our team is actively investigating this issue. We will provide another update in 8 hours or as soon as more information becomes available.
  5. 22:41 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to Telia network subscribers in Sweden and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  6. 00:48 UTC · resolved
    The incident has been resolved and SMS delivery from Twilio to Telia network subscribers in Sweden is operating normally.
Source
Oct 25, 20269h 52mSEV 2
SMS Delivery Delays from Twilio to Airtel NigeriaTwilio SMS messages to Airtel Nigeria subscribers were delivered late from about 09:11 to 19:03 UTC on 25 October 2026. The provider identified a cause and worked on a fix, then reported delivery operating normally. No further detail on the cause was given.AI-graded · one location · CARRIER NETWORK - SMS, Middle East & Africa
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS, Middle East & Africa had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · HIGH CONFIDENCE
    SMS delivery to Airtel subscribers in Nigeria was delayed for about ten hours; other carriers were not reported affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 25, 2026 · Raw record
7 updates
  1. 09:11 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays from Twilio to Airtel network subscribers in Nigeria. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 09:32 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Airtel network subscribers in Nigeria. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 10:38 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Airtel network subscribers in Nigeria. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 12:43 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Airtel network subscribers in Nigeria. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  5. 16:43 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Airtel network subscribers in Nigeria. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
  6. 18:20 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to Airtel network subscribers in Nigeria and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  7. 19:03 UTC · resolved
    The incident has been resolved and SMS delivery from Twilio to Airtel network subscribers in Nigeria is operating normally.
Source
Oct 24, 202650mSEV 3
Azure Marketplace SendGrid Customers Experiencing Account Management IssuesSendGrid users who subscribed through Azure Marketplace could not complete setup (502 errors), sign-in failed (403 errors), and plan changes such as upgrades, downgrades and cancellations failed. Impact began around 09:36 AM PDT. The cause was identified and mitigated, and the incident was resolved about 50 minutes after it started.AI-graded · some customers · SendGrid Partners
Why this grade
  1. RULES · SEV 2
    Sev 2 because SendGrid Partners had degraded performance
  2. CLAUDE · SEV 3 · SUBSET · HIGH CONFIDENCE
    Setup, sign-in and plan changes failed for SendGrid users buying through Azure Marketplace for about 50 minutes; other SendGrid users were not reported affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 24, 2026 · Raw record
3 updates
  1. 22:04 UTC · investigating
    Our engineering team is investigating issues impacting SendGrid users on Azure Marketplace: - unable to complete setup (fails with error 502) - single sign-in step fails (fails with error 403) - unable to complete plan changes such as: upgrades, downgrades, cancellations We will provide another update in 1 hour, or as soon as more information becomes available.
  2. 22:24 UTC · monitoring
    Our engineering team has identified the cause, determined customer impact began at 2026-10-24 09:36 AM PDT, and has mitigated the issue. We are monitoring to confirm that SendGrid users on Azure Marketplace are no longer experiencing account management issues, and will provide another update in 30 minutes.
  3. 22:54 UTC · resolved
    SendGrid users on Azure Marketplace are no longer experiencing account management issues. This incident has been resolved.
Source
Oct 24, 202620h 54mSEV 2
Silent Network Authentication (SNA) Missing Redirects and Gateway API (Lookup API) Failure Increase in NetherlandsSilent Network Authentication verification timed out and Lookup API transactions failed for Netherlands traffic from 21:28 UTC on 24 October until resolved 18:22 UTC on 25 October. API transactions could fall back to SMS OTP. Recovery was observed around 15:46 UTC on 25 October; the cause was not described in the updates.AI-graded · one location · CARRIER NETWORK - Verify Silent Network Auth +1
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - Verify Silent Network Auth had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · HIGH CONFIDENCE
    SNA verification timeouts and Lookup API failures hit Netherlands traffic for about 21 hours; other regions were not reported affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 25, 2026 · Raw record
9 updates
  1. 21:28 UTC · investigating
    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) and failure responses for Lookup API transactions in the Netherlands. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 21:39 UTC · identified
    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) and failure responses for Lookup API transactions in Netherlands. API transactions may temporarily fail over to secondary methods like SMS OTP. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 22:39 UTC · identified
    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) and failure responses for Lookup API transactions in Netherlands. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 00:52 UTC · identified
    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) and failure responses for Lookup API transactions in the Netherlands. API transactions may temporarily fail over to secondary methods like SMS OTP. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  5. 04:53 UTC · identified
    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) and failure responses for Lookup API transactions in the Netherlands. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 8 hours or as soon as more information becomes available.
  6. 13:05 UTC · identified
    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) and failure responses for Lookup API transactions in the Netherlands. API transactions may temporarily fail over to secondary methods like SMS OTP. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.
  7. 15:46 UTC · monitoring
    We have observed the recovery in API transactions for Silent Network Authentication (SNA) in the Netherlands and the recovery for Lookup API transactions involving the Netherlands and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  8. 17:47 UTC · monitoring
    We have observed the recovery in API transactions for Silent Network Authentication (SNA) and the recovery for Lookup API transactions in the Netherlands and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
  9. 18:22 UTC · resolved
    The incident has been resolved and API transactions for Silent Network Authentication (SNA) in the Netherlands and Lookup API transactions in the Netherlands are operating normally.
Source
Oct 24, 202618h 40mSEV 2
Silent Network Authentication (SNA) Missing Redirects on Vodafone in United KingdomSilent Network Authentication API transactions timed out for customers on Vodafone in the United Kingdom from 2026-10-24 18:42 UTC. Some verifications may have failed over to SMS OTP. Twilio observed recovery on 2026-10-25 and resolved the incident about 13:22 UTC without stating a root cause.AI-graded · one location · CARRIER NETWORK - Verify Silent Network Auth
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - Verify Silent Network Auth had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · HIGH CONFIDENCE
    SNA device verification timed out for API transactions on Vodafone UK for about 19 hours; other networks unaffected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 25, 2026 · Raw record
8 updates
  1. 18:42 UTC · investigating
    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 19:43 UTC · investigating
    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 2 hours or as soon as more information becomes available.
  3. 22:20 UTC · investigating
    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 4 hours or as soon as more information becomes available.
  4. 02:20 UTC · investigating
    Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 8 hours or as soon as more information becomes available.
  5. 05:10 UTC · monitoring
    We have observed the recovery in API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  6. 07:15 UTC · monitoring
    We have observed the recovery in API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
  7. 11:15 UTC · monitoring
    We have observed the recovery in API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom and are monitoring service stability. We will provide another update in 8 hours or as soon as more information becomes available.
  8. 13:22 UTC · resolved
    The incident has been resolved and API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom are operating normally.
Source
Oct 24, 202628h 56mSEV 2
Voice Call Failures and Post Dial Delay From a Subset of Twilio Phone Numbers to United StatesFrom October 24 to 25, some voice calls from a subset of Twilio Phone Numbers to United States network subscribers failed or had post dial delay. The cause was identified and monitoring showed recovery on October 25 before the incident was resolved.AI-graded · one location · CARRIER NETWORK - Voice, North America
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - Voice, North America had degraded performance
  2. CLAUDE · SEV 2 · SUBSET · HIGH CONFIDENCE
    Voice calls from a subset of Twilio numbers to US carriers failed or had post-dial delay for about 19 hours; other routes were fine.
  3. Claude Haiku 5.5 · prompt v11 · Oct 25, 2026 · Raw record
10 updates
  1. 14:17 UTC · investigating
    Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 15:18 UTC · investigating
    Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
  3. 15:21 UTC · identified
    Twilio customers may be experiencing voice call failures and post dial delay from a subset of Twilio Phone Numbers to network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  4. 16:22 UTC · identified
    Twilio customers may be experiencing voice call failures and post dial delay from a subset of Twilio Phone Numbers to network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  5. 18:27 UTC · identified
    Twilio customers may be experiencing voice call failures and post dial delay from a subset of Twilio Phone Numbers to network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  6. 22:28 UTC · identified
    Twilio customers may be experiencing voice call failures and post dial delay from a subset of Twilio Phone Numbers to network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
  7. 05:07 UTC · monitoring
    We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  8. 07:08 UTC · monitoring
    We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
  9. 11:09 UTC · monitoring
    We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to network subscribers in the United States and are monitoring service stability. We will provide another update in 8 hours or as soon as more information becomes available.
  10. 19:13 UTC · resolved
    The incident has been resolved and voice calls from a subset of Twilio Phone Numbers to network subscribers in the United States are operating normally.
Source
Oct 24, 20265h 43mSEV 2
SMS Delivery Delays from Twilio to WOM ColombiaTwilio SMS and MMS messages to WOM network subscribers in Colombia were delivered late from about 07:05 to 12:48 UTC on 2026-10-24. Twilio identified the cause and reported recovery at 11:41 before resolving the incident at 12:48. No specific cause was described.AI-graded · one model or feature · CARRIER NETWORK - SMS, Latin America +1
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS, Latin America had degraded performance
  2. CLAUDE · SEV 2 · SINGLE · MEDIUM CONFIDENCE · BACK AFTER 4H 35M
    SMS and MMS delivery to WOM subscribers in Colombia was delayed for about five hours; other networks were not reported affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 24, 2026 · Raw record
6 updates
  1. 07:05 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays from Twilio to WOM network subscribers in Colombia. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 08:06 UTC · investigating
    Twilio customers may be experiencing MMS delivery delays from Twilio to WOM network subscribers in Colombia. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
  3. 10:11 UTC · investigating
    Twilio customers may be experiencing MMS delivery delays from Twilio to WOM network subscribers in Colombia. Our team is actively investigating this issue. We will provide another update in 4 hours or as soon as more information becomes available.
  4. 11:40 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to WOM network subscribers in Colombia. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  5. 11:41 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to WOM network subscribers in Colombia and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  6. 12:48 UTC · resolved
    The incident has been resolved and SMS delivery from Twilio to WOM network subscribers in Colombia is operating normally.
Source
Oct 24, 20263d 1hSEV 2
SMS Delivery Delays from Twilio to Claro Costa RicaSMS sent from Twilio to Claro network subscribers in Costa Rica was delivered late intermittently from October 24 to October 27, 2026. Recovery was reported several times and then reversed. The incident was resolved on October 27 with delivery operating normally. The provider did not describe a cause beyond an identified issue.AI-graded · one location · CARRIER NETWORK - SMS, Latin America
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS, Latin America had degraded performance
  2. CLAUDE · SEV 2 · REGIONAL · HIGH CONFIDENCE
    SMS delivery from Twilio to Claro Costa Rica subscribers was delayed for about three days; other networks were not described as affected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 27, 2026 · Raw record
21 updates
  1. 00:48 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 01:51 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 02:51 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 05:03 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  5. 09:03 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
  6. 11:41 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to Claro network subscribers in Costa Rica and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  7. 13:53 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to Claro network subscribers in Costa Rica and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
  8. 17:53 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to Claro network subscribers in Costa Rica and are monitoring service stability. We will provide another update in 8 hours or as soon as more information becomes available.
  9. 22:11 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  10. 23:17 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  11. 01:26 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  12. 05:26 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.
  13. 13:35 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.
  14. 05:43 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 24 hours or as soon as more information becomes available.
  15. 18:15 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to Claro network subscribers in Costa Rica and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  16. 20:23 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  17. 21:32 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  18. 22:32 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from Twilio to Claro network subscribers in Costa Rica. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  19. 23:24 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to Claro network subscribers in Costa Rica and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  20. 01:24 UTC · monitoring
    We have observed a recovery in SMS delivery from Twilio to Claro network subscribers in Costa Rica and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
  21. 01:54 UTC · resolved
    The incident has been resolved and SMS delivery from Twilio to Claro network subscribers in Costa Rica is operating normally.
Source
Oct 23, 20265h 17mSEV 2
Voice Call Failures from Network Subscribers to Twilio Costa Rica Landline NumbersCalls from Costa Rica network subscribers to a subset of Twilio Costa Rica landline numbers failed from about 22:26 to 03:43 UTC on October 23-24. Twilio reported a recovery at 01:41 and resolved the incident at 03:43. No cause was given in the updates.AI-graded · one location · CARRIER NETWORK - Voice, Latin America
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - Voice, Latin America had degraded performance
  2. CLAUDE · SEV 2 · SUBSET · HIGH CONFIDENCE · BACK AFTER 3H 14M
    Voice calls from Costa Rica network subscribers failed to a subset of Costa Rica landline numbers for about five hours.
  3. Claude Haiku 5.5 · prompt v11 · Oct 24, 2026 · Raw record
4 updates
  1. 22:26 UTC · investigating
    Twilio customers may be experiencing voice call failures from network subscribers to a subset of Twilio Costa Rica Phone Numbers. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 23:29 UTC · investigating
    Twilio customers may be experiencing voice call failures from network subscribers to a subset of Twilio Costa Rica Phone Numbers. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.
  3. 01:41 UTC · monitoring
    We have observed a recovery in voice calls from network subscribers in Costa Rica to a subset of Twilio Costa Rica Landline Numbers and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 03:43 UTC · resolved
    The incident has been resolved and voice calls from network subscribers to Twilio Costa Rica Landline Numbers are operating normally.
Source
Oct 23, 20269h 56mSEV 2
SMS Delivery Delays from a Subset of Twilio Short Codes and Long Codes to Claro BrazilSMS sent through a subset of Twilio Alphanumeric Sender IDs, Short Codes and Long Codes to Claro subscribers in Brazil were delivered late. Recovery was observed around midnight UTC and the incident was resolved about 06:00 UTC on October 24. The provider did not describe a cause.AI-graded · one model or feature · CARRIER NETWORK - SMS, Latin America
Why this grade
  1. RULES · SEV 2
    Sev 2 because CARRIER NETWORK - SMS, Latin America had degraded performance
  2. CLAUDE · SEV 2 · SINGLE · HIGH CONFIDENCE · BACK AFTER 4H 18M
    SMS delivery to Claro subscribers in Brazil was delayed for a subset of Twilio senders for about 10 hours; other carriers were unaffected.
  3. Claude Haiku 5.5 · prompt v11 · Oct 24, 2026 · Raw record
7 updates
  1. 20:06 UTC · investigating
    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro network subscribers in Brazil. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
  2. 20:07 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes and Long Codes to Claro network subscribers in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
  3. 21:07 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro network subscribers in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.
  4. 23:07 UTC · identified
    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro network subscribers in Brazil. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.
  5. 00:24 UTC · monitoring
    We have observed a recovery in SMS delivery from a subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro network subscribers in Brazil and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
  6. 02:27 UTC · monitoring
    We have observed a recovery in SMS delivery from a subset of Twilio Alphanumeric Sender IDs, Short Codes, and Long Codes to Claro network subscribers in Brazil and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
  7. 06:02 UTC · resolved
    The incident has been resolved and SMS delivery from a subset of Twilio Short Codes and Long Codes to Claro network subscribers in Brazil is operating normally.
Source

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