SMS Delivery Failures from Twilio Short Codes and Toll Free Numbers to AT&T Network in the US

Resolved

We are no longer experiencing the issue causing SMS delivery failures from Twilio Short Codes and Toll Free numbers to the AT&T Network in the US. This incident has been resolved.

Update

We are observing successful SMS delivery from Twilio Short Codes to AT&T Network in the US. 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.

Investigating

We are continuing to experience SMS delivery failures from Twilio Short Codes and Toll Free numbers to AT&T Network in the US. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.

Investigating

We are continuing our investigation and have discovered Twilio Toll Free numbers are also impacted with this issue.

Investigating

We are experiencing SMS delivery failures from Twilio Short Codes to AT&T Network in the US. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.

Investigating

We are experiencing SMS delivery failures from Twilio Short Codes to AT&T Network in the US. 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.

Investigating

Our monitoring systems have detected a potential issue with Programmable Messaging. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.