SMS Delivery Failures to the US Cellular Network in United States via a Subset of Short Codes

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery failures to US Cellular Network in the United States. This incident has been resolved.

Posted Jan 05, 2024 - 06:15 PST

Monitoring

We are observing successful SMS delivery when sending messages to US Cellular Network in the United States via a subset of short codes. 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 Jan 05, 2024 - 04:20 PST

Update

We are now experiencing delays in receiving message delivery reports when sending to US Cellular Network in the United States via a subset of short codes. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 8 hours or as soon as more information becomes available.

Posted Jan 04, 2024 - 20:28 PST

Update

We continue to experience SMS delivery failures when sending messages to US Cellular Network in the United States via a subset of short codes. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.

Posted Jan 04, 2024 - 18:39 PST

Update

We continue to experience SMS delivery failures when sending messages to US Cellular Network in the United States via a subset of short codes. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.

Posted Jan 04, 2024 - 16:52 PST

Investigating

We are experiencing SMS delivery failures when sending messages to US Cellular Network in the United States via 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 Jan 04, 2024 - 15:52 PST

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