SMS Delivery Failures From a Subset of Twilio Long Codes to AT&T in US and Canada

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery from a subset of Twilio Long Codes to AT&T in US and Canada. This incident has been resolved.

Posted Feb 13, 2026 - 16:09 PST

Update

We are observing successful SMS delivery from a subset of Twilio Long Codes to AT&T in US and Canada. The issue is still identified for small subset of numbers. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 24 hours or as soon as more information becomes available.

Posted Feb 12, 2026 - 18:02 PST

Identified

Posted Feb 12, 2026 - 16:22 PST

Monitoring

We are observing successful SMS delivery from a subset of Twilio Long Codes to AT&T in US and Canada. We will continue to monitor to ensure full service recovery. We expect to provide another update in 2 hours or as soon as more information becomes available.

Posted Feb 12, 2026 - 14:11 PST

Update

We continue experiencing SMS Delivery Failures from a subset of Twilio Long Codes to AT&T in US and Canada. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 24 hours or as soon as more information becomes available.

Posted Feb 11, 2026 - 16:03 PST

Investigating

We are experiencing SMS Delivery Failures from a subset of Twilio Long Codes to AT&T in US and Canada. 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 Feb 11, 2026 - 14:41 PST

This incident affected: CARRIER NETWORK (SMS Long Code, North America).