SMS Delivery Delays and Failures to Viettel Network in Vietnam

Incident Report for Twilio

Resolved

We are no longer experiencing SMS Delivery Failures to Viettel Network in Vietnam. This incident has been resolved.
Posted Oct 22, 2025 - 19:45 PDT

Update

We are observing successful SMS delivery to Viettel Network in Vietnam. We will continue to monitor to ensure full service recovery. We expect to provide another update in 2 hours or as soon as more information becomes available.
Posted Oct 22, 2025 - 18:00 PDT

Monitoring

We are observing successful SMS delivery to Viettel Network in Vietnam. We will continue to monitor to ensure full service recovery. We expect to provide another update in 2 hours or as soon as more information becomes available.
Posted Oct 22, 2025 - 15:38 PDT

Update

We continue to experience SMS delivery delays and failures to Viettel Network in Vietnam. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 4 hour or as soon as more information becomes available.
Posted Oct 22, 2025 - 14:18 PDT

Update

We continue to experience SMS delivery failures to Viettel Network in Vietnam. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hour or as soon as more information becomes available.
Posted Oct 22, 2025 - 12:16 PDT

Update

We are experiencing SMS delivery failures to Viettel Network in Vietnam. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.
Posted Oct 22, 2025 - 11:21 PDT

Investigating

Our monitoring systems have detected a potential issue with SMS Delivery Failures to Viettel Network in Vietnam. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.
Posted Oct 22, 2025 - 11:16 PDT
This incident affected: CARRIER NETWORK (SMS, APAC).