SMS Delivery Delays from a Subset of Twilio Long Codes to AT&T United States

Incident Report for Twilio

Resolved

The incident has been resolved and SMS delivery from a subset of Twilio Long Codes to AT&T network subscribers in the United States is operating normally.

Posted Mar 05, 2026 - 22:36 PST

Monitoring

We have observed a recovery in SMS delivery from a subset of Twilio Long Codes 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 Mar 05, 2026 - 20:46 PST

Investigating

Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Long Codes 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 Mar 05, 2026 - 20:15 PST

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