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

> Twilio status incident “Voice Call Failures Between a Subset of Twilio Phone Numbers and Multiple Networks in Japan” on 2026-08-21: impact minor (vendor’s label), 2.9 h, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/b6kcz5pplnqf
Last updated: 2026-08-21T10:04:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-08-21 07:09 UTC · Resolved: 2026-08-21 10:04 UTC · Duration: 2.9 h
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/b6kcz5pplnqf](https://status.twilio.com/incidents/b6kcz5pplnqf)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2026-08-21 10:04 UTC: The incident has been resolved and voice calls between a subset of Twilio Phone Numbers and network subscribers on affected networks in Japan are operating normally.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Status incident (vendor impact label: minor) posted by Twilio, started 2026-08-21 07:09 UTC, resolved after 2.9 h, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/b6kcz5pplnqf
- Citation: Twilio, “Voice Call Failures Between a Subset of Twilio Phone Numbers and Multiple Networks in Japan” (2026-08-21 07:09 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/b6kcz5pplnqf (CC BY 4.0).
- Markdown link: `[Twilio: Voice Call Failures Between a Subset of Twilio Phone Numbers and Multiple Networks in Japan (2026-08-21)](https://rewindex.com/company/twilio/incidents/b6kcz5pplnqf)`


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Canonical: https://rewindex.com/company/twilio/incidents/b6kcz5pplnqf · Markdown: https://rewindex.com/company/twilio/incidents/b6kcz5pplnqf.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/b6kcz5pplnqf · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T12:55:03.145Z