SMS Delivery Receipt Delays from Twilio to Telefonica El Salvador

Incident Report for Twilio

Resolved

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

Posted Jul 31, 2026 - 09:17 PDT

Update

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.

Posted Jul 31, 2026 - 09:08 PDT

Monitoring

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.

Posted Jul 31, 2026 - 07:08 PDT

Update

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.

Posted Jul 31, 2026 - 04:06 PDT

Update

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.

Posted Jul 31, 2026 - 02:04 PDT

Identified

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.

Posted Jul 31, 2026 - 00:42 PDT

Investigating

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.

Posted Jul 30, 2026 - 23:35 PDT

This incident affected: CARRIER NETWORK (SMS, Latin America).