SMS and MMS Delivery Delays From a Subset of Shortcodes to AT&T in US

Incident Report for Twilio

Resolved

We are no longer experiencing SMS and MMS delivery delays when sending messages from a Subset of Shortcodes to AT&T in US. This incident has been resolved.

Posted Jan 09, 2023 - 04:49 PST

Monitoring

We are observing recovery in SMS and MMS delivery delays when sending messages from a Subset of Shortcodes to AT&T in US. 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 09, 2023 - 03:03 PST

Update

Our monitoring shows overall improvement in SMS delivery from a subset of short codes to AT&T network in the US. MMS delivery from a subset of short codes and Toll free numbers are still experiencing delays and it's been investigated. We will provide another update in 4 hours or as soon as more information becomes available.

Posted Jan 09, 2023 - 00:10 PST

Update

Our monitoring shows overall improvement in SMS delivery from a subset of short codes to AT&T network in the US. MMS delivery from a subset of short codes and Toll free numbers are still experiencing delays and it's been investigated. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Jan 08, 2023 - 22:23 PST

Update

We are experiencing SMS & MMS delivery delays from a subset of shortcodes to AT&T in US. 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 08, 2023 - 21:33 PST

Investigating

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

Posted Jan 08, 2023 - 21:23 PST

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