Message Delivery Report Failures When Sending to US AT&T via Zipwhip 10DLC

Incident Report for Twilio

Resolved

We are no longer observing message delivery report failures when sending to US AT&T via Zipwhip 10DLC. This incident is resolved.

Posted May 16, 2023 - 15:59 PDT

Update

We are experiencing failures in receiving message delivery reports when sending to US AT&T via Zipwhip 10DLC. 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 16, 2023 - 15:45 PDT

Investigating

Our monitoring systems have detected a potential issue with delivery reports for messages toward AT&T via Zipwhip 10DLC. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

Posted May 16, 2023 - 15:32 PDT

This incident affected: CARRIER NETWORK (SMS Toll-Free, North America).