# Delivery Issue - SMS Verification - China

- Provider: [Sinch](https://down.guide/sinch)
- Level: confirmed
- Impact: Degraded
- ongoing for 14h 2m
- started 2026-11-06 05:05 UTC
- SMS Verification
- id: DWN-d5c440c394
- Official page: https://stspg.io/7hk732n2lq72

## Summary
Sinch says it is investigating delivery issues towards China for SMS Verification traffic, starting 2026-11-06 02:57 UTC. Reported impact includes delayed MTs, failed MTs, missing delivery receipts and late delivery receipts. As of the latest update, the incident remains under investigation.

_Written by anthropic/claude-haiku-5.5 from Sinch's own updates._

## Updates from Sinch
### 2026-11-06 05:05 UTC: investigating
We are currently observing delivery issues towards China for SMS Verification traffic.
Incident Start Time: 2026-11-06 02:57 UTC
Impact: Delayed MTs/Failed MTs/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.

### 2026-11-06 07:01 UTC: investigating
We are continuing to investigate this issue.

### 2026-11-06 10:03 UTC: investigating
We are continuing to investigate this issue.

### 2026-11-06 15:13 UTC: investigating
We are continuing to investigate this issue.

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