SendGrid incident: SMS Delivery Failures from Twilio 10DLC to AT&T United States

Affected components

• SMS Long Code, North America

1. resolvedNov 12, 2026, 06:02 UTC

   The incident has been resolved and SMS delivery from Twilio 10DLC to AT&T network subscribers in the United States is operating normally.

2. monitoringNov 12, 2026, 04:00 UTC

   We have observed a recovery in SMS delivery from 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.

3. identifiedNov 12, 2026, 02:59 UTC

   Twilio customers may be experiencing SMS delivery failures from Twilio 10DLC 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.

4. identifiedNov 12, 2026, 01:58 UTC

   Twilio customers may be experiencing SMS delivery failures from Twilio 10DLC 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.

What APIStatus.watch saw

Our 5-minute checks didn't record a change in SendGrid's overall status around this incident. Smaller or regional incidents often leave a provider's overall status green.

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