Outage in Zipwhip

SMS Delivery Report Delays to T-Mobile Network in United States of America via Subset of Short Codes

Resolved Minor
October 07, 2025 - Started about 6 hours ago - Lasted about 5 hours
Official incident page

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Outage Details

We are experiencing SMS delivery delays when sending messages a subset of short codes to T-Mobile Network in the United States. 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.
Latest Updates ( sorted recent to last )
RESOLVED about 1 hour ago - at 10/08/2025 12:37AM

We are no longer experiencing delivery report delays T-Mobile Network in the United States. This incident has been resolved.

MONITORING about 3 hours ago - at 10/07/2025 10:48PM

We are observing recovery in delivery report delays when sending to T-Mobile Network in the United States.. 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.

INVESTIGATING about 5 hours ago - at 10/07/2025 08:58PM

We are continuing to investigate this issue.

INVESTIGATING about 5 hours ago - at 10/07/2025 08:58PM

We have identified that this incident is impacting only Delivery Reports, message delivery is not impacted and we are experiencing delays in receiving message delivery reports a subset of short codes to T-Mobile Network in the United States. 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.

INVESTIGATING about 6 hours ago - at 10/07/2025 07:43PM

We are experiencing SMS delivery delays when sending messages a subset of short codes to T-Mobile Network in the United States. 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.

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