SMS Delivery and DLR’s Delays in US Cellular Network in the US for a Subset of Short Codes

Incident Report for Twilio

Resolved

We are no longer experiencing SMS Delivery and DLR's Delays when sending messages to the US Cellular network from a subset of Short Codes. This incident has been resolved.

Posted Nov 09, 2022 - 13:28 PST

Monitoring

We are observing recovery in delivery report delays when sending to US Cellular Network in the US for a Subset of Short Codes. 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 Nov 09, 2022 - 11:04 PST

Update

We experienced SMS delivery delays when sending messages to US Cellular Network in the US for a Subset of Short Codes between 6:10 and 8:35 Pacific Time. Now we are only experiencing delays in receiving message delivery reports. Our engineers are working with our carrier partner to resolve the issue. We will provide another update in 1 hours or as soon as more information becomes available.

Posted Nov 09, 2022 - 10:03 PST

Investigating

Our monitoring systems have detected a potential issue with SMS Delivery and DLR's Delays in US Network US Cellular. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.

Posted Nov 09, 2022 - 09:57 PST