Twilio incident

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

Minor Ongoing View vendor source →

Twilio is currently experiencing a minor incident affecting SMS Long Code, North America and SMS Long Code, North America and 1 more component, which began 6h ago. The vendor's full update timeline is below.

Started
May 20, 2026, 03:43 PM UTC
Resolved
Ongoing
Duration
● 6h 20m
Detected by Pingoru
May 20, 2026, 03:43 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

  1. investigating May 20, 2026, 03:43 PM UTC

    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.

  2. identified May 20, 2026, 03:54 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 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 May 20, 2026, 04:55 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 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. monitoring May 20, 2026, 06:24 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.

  5. identified May 20, 2026, 08:45 PM UTC

    We have been able to confirm stability and recovery with the traffic sent to T-Mobile Network in the US with the exception of a subset of short codes, 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.

  6. identified May 20, 2026, 09:47 PM UTC

    We have been able to confirm stability and recovery with the traffic sent to T-Mobile Network in the US with the exception of a subset of short codes, Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hour or as soon as more information becomes available.