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minor✓ Resolved

SMS Delivery Failures and Delays between Twilio Phone Numbers and AT&T in Mexico

TwilioThu, May 14, 2026, 08:50 PM
Status
resolved
Duration
4d 15h
Updates
13
Coverage
0 articles

INCIDENT TIMELINE

✓ ResolvedTue, May 19, 2026, 12:05 PM
This incident has been resolved.
monitoringTue, May 19, 2026, 07:56 AM
We have observed a recovery in SMS delivery between Twilio Phone Numbers and AT&T network subscribers in Mexico and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
monitoringTue, May 19, 2026, 05:54 AM
We have observed a recovery in SMS delivery between Twilio Phone Numbers and AT&T 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.
identifiedMon, May 18, 2026, 05:51 AM
Twilio customers may be experiencing SMS delivery failures between Twilio Phone Numbers and AT&T network subscribers in Mexico. 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.
identifiedSun, May 17, 2026, 05:46 AM
Twilio customers may be experiencing SMS delivery delays and failures between Twilio Phone Numbers and AT&T network subscribers in Mexico. 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.
identifiedSat, May 16, 2026, 05:45 AM
Twilio customers may be experiencing SMS delivery failures and delays between Twilio Phone Numbers and AT&T network subscribers in Mexico. 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.
identifiedFri, May 15, 2026, 01:44 PM
Twilio customers may be experiencing SMS delivery delays and failures between Twilio Phone Numbers and AT&T network subscribers in Mexico. 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.
identifiedFri, May 15, 2026, 05:37 AM
Twilio customers may be experiencing SMS delivery failures between Twilio Phone Numbers and AT&T network subscribers in Mexico. 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.
identifiedFri, May 15, 2026, 01:34 AM
Twilio customers may be experiencing SMS delivery delays and failures between Twilio Phone Numbers and AT&T network subscribers in Mexico. 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.
identifiedThu, May 14, 2026, 11:34 PM
Twilio customers may be experiencing SMS delivery delays and failures between Twilio Phone Numbers and AT&T network subscribers in Mexico. 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.
identifiedThu, May 14, 2026, 10:33 PM
Twilio customers may be experiencing SMS delivery failures between Twilio Phone Numbers and AT&T network subscribers in Mexico. 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.
identifiedThu, May 14, 2026, 10:01 PM
Twilio customers may be experiencing SMS delivery failures from Twilio Phone Numbers to AT&T network subscribers in Mexico. 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.
identifiedThu, May 14, 2026, 08:58 PM
Twilio customers may be experiencing SMS delivery failures from Twilio Phone Numbers to AT&T network subscribers in Mexico. 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.
investigatingThu, May 14, 2026, 08:50 PM
Twilio customers may be experiencing SMS delivery failures from Twilio Phone Numbers to AT&T 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.

📊 TECHNICAL DETAILS

Internal ID
ff94fb5a-11d1-408a-a623-4fb359235895
External ID
btnm4pglm9d6
🕐 Started
Thu, May 14, 2026, 08:50 PM
🔄 Last Updated
Tue, May 19, 2026, 12:05 PM
✓ Resolved
Tue, May 19, 2026, 12:05 PM
MINOR
Impact Level
4d 15h
Total Duration
13
Status Updates
Affected Components
SMS, Latin America
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