Twilio incident

MMS 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 13, 2026 affecting MMS Long Code, North America and MMS Short Code, North America and 1 more component, lasting 1d 6h. The incident has been resolved; the full update timeline is below.

Started
Aug 13, 2026, 01:19 PM UTC
Resolved
Aug 14, 2026, 07:52 PM UTC
Duration
1d 6h
Detected by Pingoru
Aug 13, 2026, 01:19 PM UTC

Affected components

MMS Long Code, North AmericaMMS Short Code, North AmericaMMS Toll-Free, North America

Update timeline

  1. investigating Aug 13, 2026, 01:19 PM UTC

    Twilio customers may be experiencing MMS 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 13, 2026, 01:43 PM UTC

    Twilio customers may be experiencing MMS delivery 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. We will provide another update in 1 hour or as soon as more information becomes available.

  3. identified Aug 13, 2026, 02:51 PM UTC

    Twilio customers may be experiencing MMS delivery 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. We will provide another update in 2 hours or as soon as more information becomes available.

  4. identified Aug 13, 2026, 03:33 PM UTC

    Twilio customers may be experiencing MMS 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.

  5. identified Aug 13, 2026, 04:33 PM UTC

    Twilio customers may be experiencing MMS 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.

  6. identified Aug 13, 2026, 06:39 PM UTC

    Twilio customers may be experiencing MMS 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.

  7. identified Aug 13, 2026, 10:39 PM UTC

    Twilio customers may be experiencing MMS 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 8 hours or as soon as more information becomes available.

  8. identified Aug 14, 2026, 06:39 AM UTC

    Twilio customers may be experiencing MMS 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 16 hours or as soon as more information becomes available.

  9. monitoring Aug 14, 2026, 05:49 PM UTC

    We have observed a recovery in MMS 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.

  10. resolved Aug 14, 2026, 07:52 PM UTC

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