SMS Delivery Delays to U.S. Cellular Network in the U.S.

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery delays when sending messages to U.S. Cellular Network in the U.S. This incident has been resolved.

Posted Apr 02, 2025 - 16:25 PDT

Monitoring

We are observing recovery in SMS delivery delays when sending messages to U.S. Cellular Network in the U.S. 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 02, 2025 - 14:26 PDT

Update

We are experiencing SMS delivery delays when sending messages to U.S. Cellular Network in the U.S. 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 Apr 02, 2025 - 13:16 PDT

Investigating

We are experiencing SMS delivery delays when sending messages to U.S. Cellular Network in the U.S. 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 Apr 02, 2025 - 12:17 PDT

This incident affected: CARRIER NETWORK (SMS Long Code, North America, SMS Short Code, North America, SMS Toll-Free, North America) and ZIPWHIP MESSAGING (SMS Long Code, North America, SMS Toll-Free, North America).