SMS Delivery Delays to United States Cellular Corp. in the US

Incident Report for Twilio

Resolved

We are no longer experiencing MMS/SMS delivery delays when sending messages to United States Cellular Corp. in the US. This incident has been resolved.

Posted May 19, 2025 - 12:26 PDT

Monitoring

We are observing recovery in SMS delivery delays when sending messages to United States Cellular Corp. 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 19, 2025 - 10:34 PDT

Update

We are still experiencing SMS delivery delays when sending messages to United States Cellular Corp. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 24 hours or as soon as more information becomes available.

Posted May 19, 2025 - 04:42 PDT

Update

Posted May 18, 2025 - 05:00 PDT

Update

We are still experiencing SMS delivery delays when sending messages to United States Cellular Corp. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.

Posted May 17, 2025 - 13:21 PDT

Update

We are still experiencing SMS delivery delays when sending messages to United States Cellular Corp. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.

Posted May 17, 2025 - 05:21 PDT

Update

We are still experiencing SMS delivery delays when sending messages to United States Cellular Corp. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.

Posted May 17, 2025 - 01:22 PDT

Update

We are still experiencing SMS delivery delays when sending messages to United States Cellular Corp. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

Posted May 16, 2025 - 23:24 PDT

Investigating

We are still experiencing SMS delivery delays when sending messages to United States Cellular Corp. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.

Posted May 16, 2025 - 22:24 PDT

Update

We are observing recover with SMS Delivery Delays to United States Cellular Corp. in the US. We will continue to monitor to ensure a full recovery, and provide another update in 2 hours.

Posted May 16, 2025 - 20:24 PDT

Update

We are observing recover with SMS Delivery Delays to United States Cellular Corp. in the US. We will continue to monitor to ensure a full recovery, and provide another update in 2 hours.

Posted May 16, 2025 - 18:31 PDT

Monitoring

We are observing recover with SMS Delivery Delays to United States Cellular Corp. in the US. We will continue to monitor to ensure a full recovery, and provide another update in 2 hours.

Posted May 16, 2025 - 16:31 PDT

Update

We are experiencing SMS Delivery Delays to United States Cellular Corp. in the US. Our engineers are investigating, and we will provide another update in 2 hours or as soon as we have more information.

Posted May 16, 2025 - 14:46 PDT

Investigating

Our monitoring systems have detected a potential issue with SMS Delivery Delays to United States Cellular Corp. in the US via a Subset of Shortcodes. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

Posted May 16, 2025 - 14:26 PDT

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