SendGrid incident: SMS Delivery Failures From a Subset of Twilio Short Codes to T-Mobile United States

Affected components

• SMS Short Code, North America

1. resolvedSep 25, 2026, 20:35 UTC

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

2. monitoringSep 25, 2026, 18:34 UTC

   We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to T-Mobile 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. identifiedSep 25, 2026, 18:21 UTC

   Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Short Codes to T-Mobile 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.

4. investigatingSep 25, 2026, 18:11 UTC

   Twilio customers may be experiencing SMS delivery failures from a subset of Twilio Short Codes to T-Mobile 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.

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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