SMS and RCS Delivery Failures on AT&T Network

Incident Report for Twilio

Resolved

This incident has been resolved.

Posted Dec 11, 2025 - 03:44 PST

Update

We are continuing to monitor for any further issues.

Posted Dec 11, 2025 - 02:22 PST

Monitoring

A workaround is available for the SMS delivery failures sending to United States AT&T Network. Our engineers are monitoring the issue to ensure it is resolved. We expect to provide another update in 2 hours or as soon as more information becomes available.

Posted Dec 11, 2025 - 02:12 PST

Update

We are continuing to experience SMS delivery failures sending to United States AT&T Network. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.

Posted Dec 11, 2025 - 01:07 PST

Investigating

We are experiencing SMS delivery failures sending to United States AT&T Network. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 30 minutes or as soon as more information becomes available.

Posted Dec 11, 2025 - 00:34 PST

This incident affected: PROGRAMMABLE MESSAGING (SMS, RCS Messaging).