Twilio incident

Voice Call Failures Between a Subset of Twilio Phone Numbers and Multiple Networks in Japan

Twilio experienced a minor incident on August 21, 2026 affecting Voice, APAC, lasting 36m. The incident has been resolved; the full update timeline is below.

Started: Aug 21, 2026, 04:13 AM UTC
Resolved: Aug 21, 2026, 04:50 AM UTC
Duration: 36m
Detected by Pingoru: Aug 21, 2026, 04:13 AM UTC

Affected components

Voice, APAC

Update timeline

investigating Aug 21, 2026, 04:13 AM UTC

Twilio customers may be experiencing voice call failures between a subset of Twilio Phone Numbers and network subscribers on multiple networks in Japan. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
identified Aug 21, 2026, 04:20 AM UTC

Twilio customers may be experiencing voice call failures between a subset of Twilio Phone Numbers and network subscribers on multiple networks in Japan. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 1 hour or as soon as more information becomes available.
resolved Aug 21, 2026, 04:50 AM UTC

Upon further investigation into reported voice call disruptions in Japan, our team verified that the impact is limited to a single account rather than a platform-wide issue. Consequently, we are closing this public status page entry. Our team has reached out directly to the impacted customer to deliver targeted support and resolution details.