SMS Delivery Report Delays to Multiple Networks in the US from a Subset of Short Codes

Incident Report for Twilio

Resolved

We are no longer experiencing delivery report delays when sending messages to multiple networks in the US, including Verizon, AT&T and T-Mobile via small subset of short codes. This incident has been resolved.

Posted Apr 19, 2024 - 11:51 PDT

Monitoring

We are observing recovery in SMS delivery delays when sending messages to multiple networks in the US, including Verizon, AT&T and T-Mobile via small subset of short codes. 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 Apr 19, 2024 - 09:59 PDT

Update

We are experiencing SMS delivery delays when sending messages to multiple networks in the US, including Verizon, AT&T and T-Mobile via small subset of short codes. 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 Apr 19, 2024 - 09:10 PDT

Investigating

Our monitoring systems have detected a potential issue with outbound DLR delays to Multiple networks in the US, including Verizon, AT&T and T-Mobile when sending from Short Codes. Messages are being delivered but pending DLR. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

Posted Apr 19, 2024 - 09:00 PDT

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