Sinch experienced SMS delivery issues with the Unitel network in Mongolia from March 8, 2026 at 17:30 UTC to 23:45 UTC, lasting 7.7 hours. The incident caused delayed mobile-terminated and mobile-originated messages, along with missing and late delivery receipts for SMS services in the APAC region. The service was fully restored and the incident was resolved by March 9, 2026 at 02:11 UTC.
This incident has been resolved.
Incident Start Time: 2026-03-08 17:30 UTC
Incident End Time: 2026-03-08 23:45 UTC
We are continuing to investigate this issue.
We are continuing to investigate this issue.
We are continuing to investigate this issue.
We are currently observing delivery issues in Mongolia - Unitel
Incident Start Time: 2026-03-08 17:30 UTC
Impact: Delayed MT's/Delayed MO's/Missing delivery receipts/Late delivery receipts
We will update as soon as we have more information.
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