SMS Delivery Delays from Twilio to MobiFone Vietnam

Incident Report for Twilio

Resolved

The incident has been resolved and SMS delivery from Twilio to MobiFone network subscribers in Vietnam is operating normally.

Posted Feb 28, 2026 - 15:02 PST

Update

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

Posted Feb 28, 2026 - 14:21 PST

Monitoring

Posted Feb 28, 2026 - 12:21 PST

Update

Twilio customers may be experiencing SMS delivery delays from Twilio to MobiFone network subscribers in Vietnam. 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.

Posted Feb 28, 2026 - 10:20 PST

Identified

Twilio customers may be experiencing SMS delivery delays from Twilio to MobiFone network subscribers in Vietnam. 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.

Posted Feb 28, 2026 - 09:22 PST

Investigating

We are experiencing SMS delivery delays when sending messages to MobiFone network subscribers in Vietnam. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

Posted Feb 28, 2026 - 08:27 PST

This incident affected: CARRIER NETWORK (SMS, APAC).