Sinch experienced a minor incident on May 7, 2026 affecting SMS - US - 10DLC, lasting 5h 40m. The incident has been resolved; the full update timeline is below.
Affected components
SMS - US - 10DLC
Update timeline
- investigating May 07, 2026, 04:58 PM UTC
We are currently observing delivery issues towards United States - AT&T Estimated Incident Start Time: 2026-05-06 14:00 UTC Impact: Delayed delivery for concatenated 10DLC MT messages submitted towards AT&T US. We will update as soon as we have more information. If you have any questions, please contact [email protected].
- investigating May 07, 2026, 07:04 PM UTC
We are continuing to investigate this issue.
- monitoring May 07, 2026, 09:52 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved May 07, 2026, 10:39 PM UTC
This incident has been resolved. Estimated Incident Start Time: 2026-05-06 14:00 UTC Incident End Time: 2026-05-07 21:50 UTC