SMS Delivery Delays for a Small Subset of Phone Numbers in US Cellular Network

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery delays when sending messages to a small subset of phone numbers in US Cellular Network from Twilio long code and short code numbers. This incident has been resolved.

Posted Mar 23, 2021 - 02:52 PDT

Update

We continue experiencing SMS delivery delays when sending messages to a small subset of phone numbers in US Cellular Network from Twilio long code and short code numbers. 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 Mar 23, 2021 - 02:01 PDT

Update

We continue experiencing SMS delivery delays when sending messages to a small subset of phone numbers in US Cellular Network from Twilio long code and short code numbers. 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 Mar 23, 2021 - 00:00 PDT

Update

We are continuing to investigate this issue.

Posted Mar 22, 2021 - 23:11 PDT

Investigating

We are experiencing SMS delivery delays when sending messages to a small subset of phone numbers in US Cellular Network. 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 Mar 22, 2021 - 23:07 PDT

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