SMS and MMS Delivery Delays and Delivery Receipt Delays between Twilio and AT&T in the United States

Summary

SMS and MMS Delivery Delays and Delivery Receipt Delays between Twilio and AT&T in the United States

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

• Started

  Oct 6, 2026 · 11:19 PM

• Resolved

  Oct 7, 2026 · 5:16 AM

• Duration

  5h 56m

• Severity

  Minor

• ◐

  Investigating

  Oct 6 · 11:19 PM Twilio

  Twilio customers may be experiencing SMS delivery delays between Twilio and 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.

• ◐

  Investigating

  Oct 6 · 11:53 PM Twilio

  Twilio customers may be experiencing SMS and MMS delivery delays and delivery failures between Twilio and 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.

• ◐

  Investigating

  Oct 7 · 12:22 AM Twilio

  Twilio customers may be experiencing SMS delivery delays and delivery failures between Twilio and AT&T network subscribers in the United States. Our team is actively investigating this issue. We will provide another update in 2 hours or as soon as more information becomes available.

• ◆

  Identified

  Oct 7 · 2:10 AM Twilio

  Twilio customers may be experiencing SMS and MMS delivery delays and delivery receipt delays between Twilio and AT&T network 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.

• ◉

  Monitoring

  Oct 7 · 3:08 AM Twilio

  We have observed a recovery in SMS and MMS delivery between Twilio and 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.

• ✓

  Resolved

  Oct 7 · 5:16 AM Twilio

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