SMS/MMS Delivery Failures to Verizon and AT&T Networks in the US

Incident Report for Twilio

Resolved

We are no longer experiencing MMS/SMS delivery delays when sending messages to Verizon and AT&T. This incident has been resolved.

Posted Sep 28, 2023 - 15:15 PDT

Monitoring

We are observing successful MMS/SMS delivery to Verizon and AT&T networks in the US. 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 Sep 28, 2023 - 13:21 PDT

Update

SMS/MMS Delivery Failures to Verizon and AT&T Networks in the US for a subset of Long Codes. Our vendor management team is on a bridge with a downstream partner to work toward resolution. Customers may be experiencing delivery failures with a 30007 error for any traffic toward Verizon and AT&T. We will update in one hour with more information.

Posted Sep 28, 2023 - 12:48 PDT

Update

We have confirmed that MMS/SMS short code is not affected by the ongoing incident. We are experiencing MMS/SMS delivery failures to Verizon and AT&T networks in the US over a subset of long-codes. We are actively investigating the and will provide another update in 30 minutes or as soon as possible.

Posted Sep 28, 2023 - 12:19 PDT

Update

We are experiencing MMS/SMS delivery failures to Verizon and AT&T networks in the US over a subset of long-codes. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 30 minutes or as soon as more information becomes available.

Posted Sep 28, 2023 - 12:15 PDT

Investigating

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

Posted Sep 28, 2023 - 11:54 PDT

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