Twilio incident

SMS Delivery Delays from a Subset of Twilio Short Codes to C-Spire United States

Minor Resolved View vendor source →

Twilio experienced a minor incident on May 12, 2026 affecting SMS Short Code, North America, lasting 6h 51m. The incident has been resolved; the full update timeline is below.

Started
May 12, 2026, 04:24 PM UTC
Resolved
May 12, 2026, 11:16 PM UTC
Duration
6h 51m
Detected by Pingoru
May 12, 2026, 04:24 PM UTC

Affected components

SMS Short Code, North America

Update timeline

  1. investigating May 12, 2026, 04:24 PM UTC

    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to C-Spire 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 12, 2026, 04:30 PM UTC

    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to C-Spire 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 12, 2026, 05:31 PM UTC

    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to C-Spire 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 May 12, 2026, 07:33 PM UTC

    Twilio customers may be experiencing SMS delivery delays from a subset of Twilio Short Codes to C-Spire 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.

  5. monitoring May 12, 2026, 09:20 PM UTC

    We have observed a recovery in SMS delivery from a subset of Twilio Short Codes to C-Spire 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 May 12, 2026, 11:16 PM UTC

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