SMS Delivery Delays to AT&T for a Subset of Short Codes in the US

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery delays when sending messages to AT&T from a subset of Short Codes in the United States. This incident has been resolved.

Posted Jan 14, 2026 - 13:23 PST

Monitoring

We are observing recovery in SMS delivery delays when sending messages to AT&T from a subset of Short Codes in the United States. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Jan 14, 2026 - 11:10 PST

Update

We continue to experience SMS delivery delays when sending messages to AT&T from a subset of Short Codes in the United States. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Jan 14, 2026 - 11:01 PST

Investigating

We are experiencing SMS delivery delays when sending messages to AT&T from a subset of Short Codes in the United States. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

Posted Jan 14, 2026 - 09:52 PST

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