MessageMedia experienced a minor incident on April 15, 2025 affecting North America, lasting 34d 21h. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Apr 15, 2025, 07:48 PM UTC
We are currently observing delivery issues for 10DLC in United States - AT&T. Incident Start Time: 2025-04-15 15:00 UTC Impact for 10DLC: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information.
- investigating Apr 16, 2025, 02:19 PM UTC
We are continuing to investigate this issue.
- identified Apr 16, 2025, 07:28 PM UTC
The issue has been identified and our engineers are working with a fix.
- identified Apr 17, 2025, 02:50 PM UTC
We are continuing to work on a fix for this issue.
- identified Apr 21, 2025, 04:25 PM UTC
We are continuing to work on a fix for this issue.
- identified Apr 22, 2025, 10:04 PM UTC
We are continuing to work on a fix for this issue.
- identified Apr 23, 2025, 08:43 PM UTC
Thank you for your continued patience as we work through recent delivery issues affecting some AT&T 10DLC traffic. Our engineers are actively working on a fix. We apologize for the inconvenience and appreciate your continued patience. Further updates will be provided as we make progress.
- identified Apr 25, 2025, 12:14 PM UTC
We are continuing to work on a fix for this issue.
- identified Apr 28, 2025, 06:11 PM UTC
We are continuing to work on a fix for this issue.
- identified Apr 29, 2025, 06:33 PM UTC
We are continuing to work on a fix for this issue.
- identified Apr 30, 2025, 02:24 PM UTC
We are continuing to work on a fix for this issue.
- identified May 02, 2025, 08:01 PM UTC
We are continuing to work on a fix for this issue.
- identified May 06, 2025, 03:40 PM UTC
We are continuing to work on a fix for this issue.
- identified May 09, 2025, 06:55 PM UTC
We are continuing to work on a fix for this issue.
- identified May 12, 2025, 03:36 PM UTC
We have received an update from AT&T, and AT&T is currently upgrading their network to accommodate the growing demands of the industry and to introduce new services. As part of this upgrade, AT&T is migrating A2P traffic from older network components to a new gateway. During this transition, Sinch MessageMedia, along with other partners, have actively migrated significant volumes of traffic throughout April and May. However, this process encountered some issues that necessitated updates to AT&T's network. These challenges did affect message processing temporarily, but they have since been resolved, and A2P message processing is now operating at the expected service levels. Sinch MessageMedia remains in continuous communication with AT&T regarding the above information, and we have observed a significant improvement following AT&T's corrective actions. We continue to collaborate with AT&T to address a few residual error types that some customers are still experiencing.
- monitoring May 18, 2025, 09:19 PM UTC
The carrier has informed us that a solution has been implemented, and we are observing an improvement in traffic. We will continue to monitor the results. Impact: Missing delivery receipts, Late delivery receipts
- resolved May 20, 2025, 05:16 PM UTC
This incident has been resolved.