SMS Delivery Receipt Delays on US - T-Mobile Over a Subset of Short Codes

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery receipt delays to a subset of US Short Codes when sending messages to T-Mobile. This incident has been resolved.

Posted May 27, 2021 - 13:11 PDT

Monitoring

We are observing recovery in SMS delivery receipt's to US - T-Mobile over a 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 May 27, 2021 - 11:13 PDT

Update

We continue to experience SMS delivery receipt delays to US - T-Mobile over a Subset of Short Codes. We expect to provide another update in 4 hours or as soon as more information becomes available.

Posted May 27, 2021 - 10:00 PDT

Update

We are continuing to work with our carrier partner to resolve SMS delivery receipt delays to US - T-Mobile over a Subset of Short Codes. We expect to provide another update in 2 hours or as soon as more information becomes available.

Posted May 27, 2021 - 08:00 PDT

Update

We are experiencing SMS delivery receipt delays to US - T-Mobile over a 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 May 27, 2021 - 06:59 PDT

Investigating

Our monitoring systems have detected a potential issue with SMS Shortcode delivery receipts in the US. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

Posted May 27, 2021 - 06:46 PDT

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