SMS Delivery Delays from Twilio to T-Mobile United States

Incident Report for Twilio

Resolved

The incident has been resolved and SMS delivery from Twilio to T-Mobile network subscribers in the United States is operating normally.
Posted Jul 27, 2026 - 22:41 PDT

Monitoring

We have observed a recovery in SMS delivery from Twilio 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.
Posted Jul 27, 2026 - 20:40 PDT

Update

Twilio customers may be experiencing SMS delivery delays 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 4 hours or as soon as more information becomes available.
Posted Jul 27, 2026 - 18:35 PDT

Update

Twilio customers may be experiencing SMS delivery delays 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 2 hours or as soon as more information becomes available.
Posted Jul 27, 2026 - 16:34 PDT

Identified

Twilio customers may be experiencing SMS delivery delays 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.
Posted Jul 27, 2026 - 15:34 PDT

Investigating

Twilio customers may be experiencing SMS delivery delays 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.
Posted Jul 27, 2026 - 15:12 PDT
This incident affected: CARRIER NETWORK (SMS Long Code, North America, SMS Short Code, North America, SMS Toll-Free, North America) and ZIPWHIP MESSAGING (SMS Long Code, North America, SMS Toll-Free, North America).