# Radar SMS challenge failures for phone numbers in mainland China (+86)

- Provider: [WorkOS](https://down.guide/workos)
- Level: confirmed
- Impact: Partial outage
- lasted 4h 34m
- started 2026-10-15 17:17 UTC
- Dashboard, AuthKit
- id: DWN-6e6ed04e8a
- Official page: https://stspg.io/v5416ngwjz8m

## Updates from WorkOS
### 2026-10-15 17:17 UTC: investigating
We are investigating an issue affecting Radar SMS challenge verification for phone numbers in mainland China (+86). Affected users may not receive verification codes or may encounter an error when requesting one, preventing them from completing verification. We will provide an update as more information becomes available.

### 2026-10-15 17:55 UTC: monitoring
We are seeing some recovery after our upstream provider has enabled alternate delivery routes. We are continuing to monitor.

### 2026-10-15 21:51 UTC: resolved
We've resolved the issue with Radar SMS challenge verifications to China.

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