SMS Delivery Delays to AT&T US via Subset of Toll Free Numbers Short Codes and Long Codes

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery delays when sending messages to AT&T US from long codes, short codes or Toll Free numbers. This incident has been resolved.

Posted Feb 17, 2022 - 13:20 PST

Monitoring

We are observing recovery in SMS delivery delays when sending messages to AT&T US via subset of long codes, short codes and Toll Free numbers. 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 Feb 17, 2022 - 11:33 PST

Update

We are experiencing SMS delivery delays when sending messages to AT&T US via subset of long codes, short codes and Toll Free numbers. 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 Feb 17, 2022 - 10:34 PST

Update

We are experiencing SMS delivery delays when sending messages to AT&T US via subset of Toll Free numbers and short codes. 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 Feb 17, 2022 - 09:48 PST

Investigating

Our monitoring systems have detected a potential issue with SMS delivery delays to AT&T US via subset of Toll Free numbers. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

Posted Feb 17, 2022 - 09:41 PST

This incident affected: CARRIER NETWORK (SMS Long Code, North America, SMS Short Code, North America, SMS Toll-Free, North America).