SMS Delivery Failures to United Wireless in United States from Toll-Free Numbers

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery failures when sending to United Wireless in United States from Toll-Free Numbers. This incident has been resolved.

Posted Feb 06, 2026 - 17:08 PST

Monitoring

We are observing successful SMS delivery failures when sending to United Wireless in United States from Toll-Free Numbers. 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 Feb 06, 2026 - 15:07 PST

Update

We are still experiencing SMS delivery failures when sending to United Wireless in United States from Toll-Free Numbers. 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 Feb 06, 2026 - 14:46 PST

Update

We are still experiencing SMS delivery failures when sending to United Wireless in United States from Toll-Free Numbers. 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 Feb 06, 2026 - 10:58 PST

Update

We are still experiencing SMS delivery failures when sending to United Wireless in United States from Toll-Free Numbers. 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 Feb 06, 2026 - 10:16 PST

Update

We are still experiencing SMS delivery failures when sending to United Wireless in United States from Toll-Free Numbers. 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 Feb 06, 2026 - 08:59 PST

Investigating

We are experiencing SMS delivery failures when sending to United Wireless in United States from Toll-Free Numbers. 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 Feb 06, 2026 - 07:58 PST

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