SMS Delivery Receipt Delays from Twilio to Altan Mexico

Incident Report for Twilio

Resolved

The incident has been resolved and SMS delivery receipts from Twilio to Altan network subscribers in Mexico are operating normally.

Posted Jul 28, 2026 - 14:57 PDT

Update

We are continuing to monitor for any further issues.

Posted Jul 28, 2026 - 13:40 PDT

Monitoring

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

Posted Jul 28, 2026 - 13:22 PDT

Identified

Twilio customers may be experiencing SMS delivery receipt delays from Twilio to Altan network subscribers in Mexico. 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 28, 2026 - 13:18 PDT

Investigating

Twilio customers may be experiencing SMS delivery receipt delays from Twilio Phone Numbers to Altan network subscribers in Mexico. 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 28, 2026 - 13:09 PDT

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