SMS Delivery Delays to Verizon Network

Incident Report for Twilio

Resolved

We are no longer experiencing SMS delivery failures to US Verizon Network. This incident has been resolved.

Posted Apr 29, 2021 - 14:38 PDT

Monitoring

We are observing recovery in SMS delivery delays when sending messages to Verizon Network. 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 Apr 29, 2021 - 13:58 PDT

Update

We have identified the provider causing SMS delivery delays when sending messages to Verizon Network. We have made temporary changes to address the issue and will continue working with our carrier partner to ensure a full recovery. We will provide another update in 2 hours or as soon as more information becomes available.

Posted Apr 29, 2021 - 13:47 PDT

Identified

We have identified the provider causing SMS delivery delays when sending messages to Verizon Network. We have made temporary changes to address the issue and will continue working with our carrier partner to ensure a full recovery. We will provide another update in 1 hour or as soon as more information becomes available.

Posted Apr 29, 2021 - 12:55 PDT

Update

Upon further investigation, we have confirmed that SMS Delivery Notification and Status Callbacks are not affected by the ongoing incident. We are actively investigating the SMS Delivery Delays to Verizon Network and will provide another update as soon as possible.

Posted Apr 29, 2021 - 12:21 PDT

Investigating

We are experiencing SMS delivery delays when sending messages to Verizon 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 Apr 29, 2021 - 12:05 PDT

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