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Verify Voice Traffic Failures to Japan

ResolvedminorOfficial source confirmedSpecific component onlyStarted Sep 21, 2026, 05:25 PM · Resolved Sep 21, 2026, 05:25 PM

On September 20th, Starting 15:30 UTC, Twilio customers may have experienced issues where Voice Verifications to Japan failed. This issue was resolved 9/20 17:52 UTC.

Twilio live status →

Affected services

Voice REST API US1

Timeline

No vendor updates were captured for this incident before it was resolved.

What to do next

  • Verify your own services recovered cleanly. Some upstream outages leave queues or caches in a degraded state, run smoke tests before declaring green internally.
  • Save the post-mortem. Vendors usually publish a detailed RCA 1-3 days later. We'll add it to this page when it appears.
  • Watch the provider going forward. Follow Twilio's status feed →

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