Outage in Twilio

SMS and MMS Delivery Delays to T-Mobile Network in the US

Resolved Minor
November 19, 2025 - Started 3 days ago - Lasted about 6 hours
Official incident page

Incident Report

T-Mobile has notified us that their planned maintenance window has been extended. As a result, message processing capacity is reduced, which may cause delays during peak periods—particularly at the top of the hour. While we expect the overall impact to be minimal, we are actively monitoring the situation and making adjustments as needed. We will provide another update in 1 hour or sooner if additional information becomes available.

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Latest Updates ( sorted recent to last )
RESOLVED 3 days ago - at 11/19/2025 10:12PM

We are no longer experiencing SMS and MMS Delivery delays to T-Mobile Network in the US. This incident has been resolved.

MONITORING 3 days ago - at 11/19/2025 08:28PM

We are observing recovery with SMS and MMS Delivery delays to T-Mobile Network in the US. 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.

MONITORING 3 days ago - at 11/19/2025 07:11PM

We are experiencing SMS and MMS Delivery delays to T-Mobile Network in the US. 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.

MONITORING 3 days ago - at 11/19/2025 06:26PM

We are observing recovery from the SMS and MMS Delivery delays to T-Mobile Network in the US. We will continue to monitor the next top of the hour traffic to ensure full service recovery. We expect to provide another update in 4 hours or as soon as more information becomes available.

INVESTIGATING 3 days ago - at 11/19/2025 05:46PM

We are continuing to investigate this issue.

INVESTIGATING 3 days ago - at 11/19/2025 05:10PM

We are experiencing SMS and MMS Delivery delays to T-Mobile Network in the US. 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.

INVESTIGATING 3 days ago - at 11/19/2025 04:12PM

T-Mobile has notified us that their planned maintenance window has been extended. As a result, message processing capacity is reduced, which may cause delays during peak periods—particularly at the top of the hour. While we expect the overall impact to be minimal, we are actively monitoring the situation and making adjustments as needed. We will provide another update in 1 hour or sooner if additional information becomes available.

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