SMS Delivery Delays and Failures to AT&T Long Codes and Short Codes in United States of America

Incident Report for Twilio

Resolved

We are still experiencing SMS delivery delays and failures when sending Short Code, Long Code and Toll Free messages to AT&T network in USA. However, since there are several Twilio impacted services, we're resolving this post and we're consolidating all impacted products and services into one post. You can check the status of this at https://status.twilio.com/incidents/9x3f5ztzp0ss

Posted Aug 05, 2025 - 21:37 PDT

Update

We are experiencing SMS delivery delays and failures when sending Short Code, Long Code and Toll Free messages to AT&T network in USA. 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 Aug 05, 2025 - 21:22 PDT

Investigating

We are experiencing SMS delivery delays and failures when sending messages to Cingular Wireless (AT&T) network in USA. 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 Aug 05, 2025 - 20:50 PDT

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