SMS Delivery Failures from Twilio Phone Numbers to AT&T Mexico

Incident Report for Twilio

Resolved

The incident has been resolved and SMS delivery from Twilio Phone Numbers to AT&T network subscribers in Mexico is operating normally.

Posted May 14, 2026 - 14:16 PDT

Monitoring

We have observed a recovery in SMS delivery from Twilio Phone Numbers to 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.

Posted May 14, 2026 - 14:16 PDT

Identified

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.

Posted May 14, 2026 - 14:10 PDT

Investigating

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.

Posted May 14, 2026 - 14:07 PDT

This incident affected: CARRIER NETWORK (SMS, Latin America).