Twilio incident

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

Minor Resolved View vendor source →

Twilio experienced a minor incident on August 31, 2026 affecting SMS Short Code, North America, lasting 6h 56m. The incident has been resolved; the full update timeline is below.

Started
Aug 31, 2026, 01:43 PM UTC
Resolved
Aug 31, 2026, 08:40 PM UTC
Duration
6h 56m
Detected by Pingoru
Aug 31, 2026, 01:43 PM UTC

Affected components

SMS Short Code, North America

Update timeline

  1. investigating Aug 31, 2026, 01:43 PM UTC

    Twilio customers may be experiencing SMS delivery delays 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.

  2. identified Aug 31, 2026, 02:42 PM UTC

    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.

  3. identified Aug 31, 2026, 03:44 PM UTC

    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.

  4. identified Aug 31, 2026, 05:45 PM UTC

    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.

  5. monitoring Aug 31, 2026, 06:33 PM UTC

    We have observed a recovery in SMS delivery receipts 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.

  6. resolved Aug 31, 2026, 08:40 PM UTC

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