SMS Delivery Delays to Cellular NE Arizona Network in US via a Subset of Short Codes

Incident Report for Twilio

Resolved

This incident has been resolved.

Posted Dec 11, 2025 - 01:01 PST

Monitoring

We are observing recovery in SMS delivery delays to Cellular NE Arizona network in US 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 Dec 10, 2025 - 22:57 PST

Update

We are experiencing SMS delivery delays to Cellular NE Arizona network in US via a subset of short codes. 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 Dec 10, 2025 - 19:20 PST

Update

We are experiencing SMS delivery delays to Cellular NE Arizona network in US via a subset of Short Codes. 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 Dec 10, 2025 - 17:23 PST

Update

We are experiencing SMS delivery delays to Cellular NE Arizona network in US via a subset of Short Codes. 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 Dec 10, 2025 - 16:24 PST

Investigating

Our monitoring systems have detected a potential issue SMS delivery delays to Cellular NE Arizona network in US. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

Posted Dec 10, 2025 - 16:11 PST

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