Message Delivery Failures to T-Mobile for a Subset of A2P 10DLC-Registered Traffic

Incident Report for Twilio

Resolved

We are no longer experiencing message delivery errors on Twilio US A2P 10DLC-registered traffic to T-Mobile. This incident has been resolved.

Posted Mar 09, 2022 - 11:25 PST

Monitoring

Message delivery to T-Mobile for Twilio US A2P 10DLC-registered traffic is now operating normally. We will continue to monitor for system stability. We'll provide another update in 30 minutes or as soon as more information becomes available.

Posted Mar 09, 2022 - 10:55 PST

Identified

Our engineers have identified the issue causing message delivery errors on Twilio US A2P 10DLC-registered traffic to T-Mobile, and are working to deploy a fix. We expect to provide another update in 2 hours or as soon as more information becomes available.

Posted Mar 09, 2022 - 09:55 PST

Update

We are investigating message delivery errors when sending SMS and MMS to T-Mobile for a subset of Twilio US A2P 10DLC-registered traffic. Impacted customers may receive Error 30007 responses. We expect to provide another update in 1 hour or as soon as more information becomes available.

Posted Mar 09, 2022 - 08:56 PST

Investigating

Our monitoring systems have detected a potential issue with message delivery to T-Mobile for a subset of messages via US longcodes. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

Posted Mar 09, 2022 - 08:34 PST

This incident affected: CARRIER NETWORK (SMS Long Code, North America, MMS Long Code, North America).