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

Summary

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

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

• Started

  Oct 4, 2026 · 9:28 PM

• Resolved

  Oct 4, 2026 · 9:48 PM

• Duration

  19m

• Severity

  Minor

• ◆

  Identified

  Oct 4 · 9:28 PM SendGrid

  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 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.

• ✓

  Resolved

  Oct 4 · 9:48 PM SendGrid

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