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

Summary

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

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

• Started

  Oct 15, 2026 · 1:17 PM

• Resolved

  Oct 15, 2026 · 5:51 PM

• Duration

  4h 34m

• Severity

  Major

• ◐

  Investigating

  Oct 15 · 1:17 PM WorkOS

  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.

• ◉

  Monitoring

  Oct 15 · 1:55 PM WorkOS

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

• ✓

  Resolved

  Oct 15 · 5:51 PM WorkOS

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