Zoom incident: Service Degradation Affecting Zoom Phone Outbound Calls in China Region

Affected components

• Calling (Inbound/Outbound)

1. resolvedSep 16, 2026, 04:35 UTC

   This incident has been resolved and the affected services have been restored.

2. monitoringSep 16, 2026, 04:29 UTC

   The issue affecting Zoom Phone outbound calls has been successfully resolved. Our team will continue to monitor the situation closely and keep you informed of any further developments.

3. identifiedSep 16, 2026, 04:15 UTC

   We have successfully identified the root cause affecting Zoom Phone outbound calls for users with phone numbers that have the +8621 prefix in China. Inbound calls not impacted. Our team is actively working on a resolution, and we will keep you informed with timely updates as progress is made. Thank you for your patience.

4. investigatingSep 16, 2026, 04:00 UTC

   We are currently investigating a service degradation affecting Zoom Phone outbound calls for users with phone numbers that have the +8621 prefix in China. Inbound calls not impacted. Our team is actively working to identify the impact and root cause. We will provide an update as soon as more information becomes available. We appreciate your patience as we work to resolve this issue.

What APIStatus.watch saw

• Sep 16, 2026, 04:05 UTCoperational → degraded
• Sep 16, 2026, 04:30 UTCdegraded → operational

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How often does Zoom have incidents?

Zoom reported 22 incidents in the last 90 days. A typical incident lasted 2h 2m. See Zoom's uptime and incident history