SMS and MMS Delivery Receipt Delays from Twilio to AT&T United States

Incident Report for Twilio

Resolved

The incident has been resolved and SMS and MMS delivery receipts from Twilio to AT&T network subscribers in the United States are operating normally.

Posted Oct 07, 2026 - 15:33 PDT

Update

We have observed a recovery in SMS and MMS delivery receipts from Twilio to AT&T network subscribers in the United States and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.

Posted Oct 07, 2026 - 13:43 PDT

Monitoring

We have observed a recovery in SMS and MMS delivery receipts from Twilio to AT&T network subscribers in the United States and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Oct 07, 2026 - 11:40 PDT

Update

Twilio customers may be experiencing SMS and MMS Delivery Receipt Delays from Twilio to AT&T network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Oct 07, 2026 - 09:44 PDT

Identified

Twilio customers may be experiencing SMS and MMS delivery delays from Twilio to AT&T network subscribers in the United States. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

Posted Oct 07, 2026 - 08:41 PDT

Investigating

Twilio customers may be experiencing MMS delivery delays from Twilio to AT&T network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

Posted Oct 07, 2026 - 08:09 PDT

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