SMS Delivery Delays to Cingular Wireless (AT&T) in United States of America via Subset of Longcodes

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery delays when sending messages to Cingular Wireless (AT&T) in United States of America via Subset of Longcodes. This incident has been resolved.

Posted May 16, 2025 - 07:50 PDT

Monitoring

We are observing recovery in SMS delivery delays when sending messages to Cingular Wireless (AT&T) in United States of America via Subset of Longcodes. 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 16, 2025 - 05:51 PDT

Update

We are experiencing SMS delivery delays when sending messages to Cingular Wireless (AT&T) in United States of America via Subset of Longcodes. 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 16, 2025 - 04:50 PDT

Update

We are experiencing SMS delivery delays when sending messages to Cingular Wireless (AT&T) in United States of America via Subset of Longcodes. 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 - 03:00 PDT

Investigating

We are experiencing SMS delivery delays when sending messages to Cingular Wireless (AT&T) in United States of America via Subset of Longcodes. 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 - 02:12 PDT

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