Outage in Sinch
Delivery Issue United States - AT&T
Resolved MinorIncident Report
Summary AI Generated
Sinch experienced delivery issues with AT&T in the United States from April 18, 2026 01:25 UTC to 05:20 UTC, lasting approximately 4 hours. The incident affected SMS services across US Toll Free, 10DLC, and ShortCode numbers, as well as US MMS services. The delivery issues were resolved after investigation and monitoring.
We are currently observing delivery issues in United States - AT&T
Incident Start Time: 2026-04-18 01:25 UTC
We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
Components affected
Sinch SMS - US - Toll Free Sinch SMS - US - 10DLC Sinch SMS - US - ShortCode Sinch MMS - USTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
2 days ago - at 04/18/2026 07:03AM
This incident has been resolved.
Incident Start Time: 2026-04-18 01:25 UTC
Incident End Time: 2026-04-18 05:20 UTC
INVESTIGATING
2 days ago - at 04/18/2026 04:46AM
We are continuing to investigate this issue.
INVESTIGATING
2 days ago - at 04/18/2026 02:34AM
We are continuing to investigate this issue.
INVESTIGATING
2 days ago - at 04/18/2026 01:51AM
We are currently observing delivery issues in United States - AT&T
Incident Start Time: 2026-04-18 01:25 UTC
We will update as soon as we have more information.
If you have any questions, please contact support@sinch.com.
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