Twilio incident

SMS Delivery Receipt Delays from Twilio to Telefonica El Salvador

Minor Resolved View vendor source →

Twilio experienced a minor incident on July 31, 2026 affecting SMS, Latin America, lasting 9h 41m. The incident has been resolved; the full update timeline is below.

Started
Jul 31, 2026, 06:35 AM UTC
Resolved
Jul 31, 2026, 04:17 PM UTC
Duration
9h 41m
Detected by Pingoru
Jul 31, 2026, 06:35 AM UTC

Affected components

SMS, Latin America

Update timeline

  1. investigating Jul 31, 2026, 06:35 AM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Telefonica network subscribers in El Salvador. Our team is actively investigating this 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.

  2. identified Jul 31, 2026, 07:42 AM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Telefonica network subscribers in El Salvador. 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 Jul 31, 2026, 09:04 AM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Telefonica network subscribers in El Salvador. 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 Jul 31, 2026, 11:06 AM UTC

    Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Telefonica network subscribers in El Salvador. 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 Jul 31, 2026, 02:08 PM UTC

    We have observed a recovery in SMS delivery receipts from Twilio to Telefonica network subscribers in El Salvador and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

  6. monitoring Jul 31, 2026, 04:08 PM UTC

    We have observed a recovery in SMS delivery receipts from Twilio to Telefonica network subscribers in El Salvador and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.

  7. resolved Jul 31, 2026, 04:17 PM UTC

    The incident has been resolved and SMS delivery receipts from Twilio to Telefonica network subscribers in El Salvador are operating normally.