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

- Provider: [WorkOS](https://outages.cc/workos.md)
- Type: Incident
- State: Resolved
- Worst impact: Partial outage
- Started: 2026-10-15 17:17 UTC
- Resolved: 2026-10-15 21:51 UTC (lasted 4 h 34 min)
- Components: Dashboard, AuthKit, Core Services - AuthKit, Supporting Services - Dashboard
- Official update: https://stspg.io/v5416ngwjz8m

## Updates from WorkOS

### resolved, 2026-10-15 21:51 UTC

We've resolved the issue with Radar SMS challenge verifications to China.

### monitoring, 2026-10-15 17:55 UTC

We are seeing some recovery after our upstream provider has enabled alternate delivery routes. We are continuing to monitor.

### investigating, 2026-10-15 17:17 UTC

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.