MMS Degradation - AT&T United States

Incident Report for Sinch

Resolved

This incident has been resolved.

Incident Start Time: 2025-10-29 15:49 UTC
Incident End Time: 2025-10-30 08:21 UTC
Posted Oct 30, 2025 - 18:16 UTC

Update

We are continuing to investigate this issue.
Posted Oct 30, 2025 - 05:52 UTC

Update

We are continuing to investigate this issue.
Posted Oct 30, 2025 - 01:11 UTC

Update

We are continuing to investigate this issue.
Posted Oct 29, 2025 - 19:33 UTC

Investigating

Dear Client,

We are writing to inform you that we are currently facing delays on our MMS platform.

Incident Start Time: 2025-10-29 15:49 UTC

Impact MMS: Delayed MTs/Delayed MOs/Missing delivery receipts/Late delivery receipts.

We appreciate your understanding, if you have any further questions or concerns please do not hesitate to reach out to support@sinch.com
Posted Oct 29, 2025 - 17:53 UTC
This incident affected: External Connectivity (MMS - US - 10DLC).