SMS and MMS Delivery and Report Delays and Failures to US T-Mobile

We are observing recovery in the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 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.

We are observing recovery in the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. We will continue monitoring the service to ensure a full recovery. We will provide another update in 6 hours or as soon as more information becomes available.

We are continuing to observe delivery delays when sending messages via short codes. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 8 hours or as soon as more information becomes available.

We are continuing to observe delivery delays when sending messages via short codes. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.

We are continuing to observe degraded service when sending messages via short codes. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.

We are reverting the status of this incident to 'identified' as we are observing degraded service when sending messages via short codes. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.

We are observing recovery in the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 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.

We have identified the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 10DLC and Toll-Free messages are succeeding. Toll-Free messages are not receiving delivery reports, and senders are receiving a 'Delivery Unknown' message via the status callback after 16:30 PT on March 21 2022. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 8 hours or as soon as more information becomes available.

We continue to investigate the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 10DLC and Toll-Free messages are succeeding. Toll-Free messages are not receiving delivery reports, and senders are receiving a 'Delivery Unknown' message via the status callback after 16:30 PT on March 21 2022. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.

We continue to investigate the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 10DLC and Toll-Free messages are succeeding. Toll-Free messages are not receiving delivery reports, and senders are receiving a 'Delivery Unknown' message via the status callback after 16:30 PT on March 21 2022. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update by 09:00 PDT or as soon as more information becomes available.

We continue to investigate the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 10DLC and Toll-Free messages are succeeding. Toll-Free messages are not receiving delivery reports, and senders are receiving a 'Delivery Unknown' message via the status callback after 16:30 PT. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update by 07:00 PDT March 22 or as soon as more information becomes available.

We continue to investigate the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 10DLC and Toll-Free messages are succeeding. Toll-Free messages are not receiving delivery reports, and senders are receiving a 'Delivery Unknown' message via the status callback after 16:30 PT. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 2 hours or as soon as more information becomes available.

We continue to investigate the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 10DLC and Toll-Free messages are succeeding. Toll-Free messages are not receiving delivery reports and after 16:30 PT, senders will receive a 'Delivery Unknown' message via the status callback. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.

We are continuing to investigate the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 10DLC and Toll-Free messages are now succeeding. Toll-Free messages are not receiving delivery reports and after 16:30 PT senders will receive a 'Delivery Unknown' message via the status callback. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.

We are continuing to investigate the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 10DLC and Toll-Fee messages are now succeeding. Toll-Free messages are not receiving delivery reports and after 16:30 PT senders will receive a 'Delivery Unknown' message via the status callback. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 30 minutes or as soon as more information becomes available.

We are continuing to investigate the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 10DLC and Toll-Fee messages are now succeeding. Toll-Free messages are not receiving delivery reports and after 16:30 PT senders will receive a 'Delivery Unknown' message via the status callback. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 30 minutes or as soon as more information becomes available.

We are continuing to investigate the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 10DLC and Toll-Fee messages are now succeeding, though Toll-Free messages are not causing delivery reports. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 30 minutes or as soon as more information becomes available.

We are continuing to investigate the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. 10DLC messages are not failing but are delayed. For Toll-Free Numbers, many reported as failed are actually delivered. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 30 minutes or as soon as more information becomes available

We are continuing to investigate the issue causing failures and delays for delivery and delivery reports for messages to the US T-Mobile network across all number types. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 30 minutes or as soon as more information becomes available.

We are expanding the scope if this incident to include the Verify and Authy products. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in 30 minutes or as soon as more information becomes available.

We are expanding the scope if this incident to include all sending number types. Scope is also expanded to include both delays and failures of both delivery and delivery reports. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in one hour or as soon as more information becomes available.

We are experiencing delays in receiving message delivery reports when sending to US T-Mobile network on Twilio toll free numbers and Short Codes. Our engineers are working with our carrier partner to resolve the issue. We expect to provide another update in one hour or as soon as more information becomes available.

Our monitoring systems have detected a potential issue with SMS and MMS delivery receipt delays when sending to multiple networks over a subset of Toll free and short codes. Our engineering team has been alerted and is actively investigating. We will update as soon as we have more information.