Twilio incident

SMS Delivery Delays and Failures and MMS Delivery Delays and Failures from Twilio Phone Numbers to T-Mobile United States

Resolved after 4 hours 15 minutes, affecting SMS Long Code, North America and SMS Long Code, North America and 1 more, on July 16, 2026.

resolved Jul 16, 2026, 10:30 PM UTC

The incident has been resolved and SMS and MMS delivery from Twilio Phone Numbers to T-Mobile network subscribers in the United States is operating normally.

Started: Jul 16, 2026, 06:14 PM UTC
Resolved: Jul 16, 2026, 10:30 PM UTC
Duration: 4h 15m
Detected by Pingoru: Jul 16, 2026, 06:14 PM UTC

Affected components

SMS Long Code, North AmericaSMS Long Code, North AmericaMMS Long Code, North AmericaMMS Long Code, North AmericaSMS Short Code, North AmericaSMS Toll-Free, North AmericaMMS Short Code, North AmericaMMS Toll-Free, North AmericaSMS Toll-Free, North AmericaMMS Toll-Free, North America

Update timeline

investigating Jul 16, 2026, 06:14 PM UTC

Twilio customers may be experiencing SMS delivery delays and failures from Twilio Phone Numbers 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.
identified Jul 16, 2026, 06:21 PM UTC

Twilio customers may be experiencing SMS and MMS delivery delays and failures from Twilio 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.
identified Jul 16, 2026, 07:23 PM UTC

Twilio customers may be experiencing SMS and MMS delivery delays and failures from Twilio Phone Numbers 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 2 hours or as soon as more information becomes available.
monitoring Jul 16, 2026, 08:28 PM UTC

We have observed a recovery in SMS and MMS delivery from Twilio Phone Numbers 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.
resolved Jul 16, 2026, 10:30 PM UTC

The incident has been resolved and SMS and MMS delivery from Twilio Phone Numbers to T-Mobile network subscribers in the United States is operating normally.

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