SMS Delivery Delays and Delivery Failures to MobiFone Network in Vietnam for a Subset of Alphanumeric Senders

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery delays when sending messages to MobiFone Network in Vietnam for a subset of Alphanumeric Senders. This incident has been resolved.

Posted Jun 01, 2024 - 10:38 PDT

Monitoring

We are observing recovery in SMS delivery delays when sending messages to MobiFone Network in Vietnam for a subset of Alphanumeric Senders. We will continue monitoring the service to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Jun 01, 2024 - 08:50 PDT

Update

We are continuing to experience SMS delivery delays and delivery failures to MobiFone Network in Vietnam for a subset of Alphanumeric Senders. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 8 hours or as soon as more information becomes available.

Posted Jun 01, 2024 - 00:56 PDT

Update

We are continuing to experience SMS delivery delays and delivery failures to MobiFone Network in Vietnam for a subset of Alphanumeric Senders. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.

Posted May 31, 2024 - 21:00 PDT

Update

We are continuing to experience SMS delivery delays and delivery failures to MobiFone Network in Vietnam for a subset of Alphanumeric Senders. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.

Posted May 31, 2024 - 19:15 PDT

Investigating

We are investigating SMS delivery delays and delivery failures to MobiFone Network in Vietnam for a subset of Alphanumeric Senders. 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 May 31, 2024 - 18:17 PDT

Monitoring

We are observing recovery with SMS delivery delays and delivery failures to MobiFone Network in Vietnam for a subset of Alphanumeric Senders. Our engineers will continue to monitor to ensure a full recovery, and we will provide another update in 2 hours.

Posted May 31, 2024 - 16:30 PDT

Update

Posted May 31, 2024 - 15:41 PDT

Investigating

Our monitoring systems have detected a potential issue Alphanumeric Senders. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

Posted May 31, 2024 - 15:29 PDT

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