SMS Delivery Receipt Delays From a Subset of Twilio Short Codes to T-Mobile United States

Incident Report for Twilio

Update

Twilio customers may be experiencing SMS delivery receipt delays 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. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 4 hours or as soon as more information becomes available.
Posted Sep 14, 2026 - 17:27 PDT

Update

Twilio customers may be experiencing SMS delivery receipt delays 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. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 2 hours or as soon as more information becomes available.
Posted Sep 14, 2026 - 15:26 PDT

Identified

Twilio customers may be experiencing SMS delivery receipt delays 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. Message delivery may succeed, but delivery receipts may be delayed. We will provide another update in 1 hour or as soon as more information becomes available.
Posted Sep 14, 2026 - 14:25 PDT
This incident affects: CARRIER NETWORK (SMS Short Code, North America).