Delivery Issue - United States - AT&T
Sinch reports delivery problems for SMS Verification, SMS - US - 10DLC, Verification - SMS Verification, and External Connectivity - SMS - US - 10DLC in the United States on the AT&T network. Sinch is investigating. The incident started at 00:00 UTC on 2026-11-12.
State
Investigating
Started
Ongoing for
16 min
Worst impact
Degraded
Timeline
1 updateInvestigating
16 min 100%
Updates
Times in UTCAs posted by Sinch
We are currently observing delivery issues in United States - AT&T Incident Start Time: 2026-11-12 00:00 UTC Impact: Failed MT's/Delayed MT's/Missing delivery receipts/Late delivery receipts We will update as soon as we have more information. If you have any questions, please contact support@sinch.com.
Affected components
4Sinch in the last 90 days
Full historyIncidents in 90 days
60
Days with an incident
41
Median duration
2 h 56 min
This incident
91% shorter than the median
Other Sinch incidents
All incidents
Sinch·Minor Service Outage
Sinch reported a minor service outage on several SMS and MMS components. The affected components include MM4 and MM7 (MMS 365), SMS 365 Operator RoW, International SMS 365, and US SMS and MMS services for Toll Free and 10DLC. Sinch states that the outage is resolved. It lasted 45 minutes.
Sinch·Partial System Outage
Sinch reports a partial outage that affects SMS and MMS Toll Free and 10DLC services in the US, SMS Toll Free in Canada, and the Campaign Registry status for the US. Sinch resolved the outage after 15 minutes.
Sinch·Service Degradation - Customer Dashboard
Sinch reports degradation of Login and Sign up on Dashboard.sinch.com. The incident is resolved and lasted 72 minutes.
Sinch·Delivery Issue France - Bouygues Telecom
Sinch reports delivery issues in France for Bouygues Telecom. The issue affects SMS - EMEA and External Connectivity - SMS - EMEA. Missing or late delivery receipts occurred. Sinch applied a fix and monitored the results. The incident is resolved. It lasted from 2026-11-09 12:07 UTC to 2026-11-10 01:40 UTC.
Sinch·Delivery Issue - SMS Verification - China
Sinch SMS Verification delivery is degraded for China. Sinch reports that the incident is resolved. The incident lasted from 2026-11-06 02:57 UTC to 2026-11-10 02:00 UTC.
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