# Twilio: Calls API returning 5xx

> Twilio status incident “Calls API returning 5xx” on 2025-09-01: impact none (vendor’s label), 0 min, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/y5yxgbw9bt0s
Last updated: 2025-09-01T00:29:00Z

- Impact (vendor’s label): none
- Status: resolved
- Started: 2025-09-01 00:29 UTC · Resolved: 2025-09-01 00:29 UTC · Duration: 0 min
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/y5yxgbw9bt0s](https://status.twilio.com/incidents/y5yxgbw9bt0s)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **resolved** 2025-09-01 00:29 UTC: Between 12:33 AM and 12:34 AM UTC, Twilio accounts may not have been able to modify or transfer in-progress calls using the Calls API. The service is now operational.

_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: none) posted by Twilio, started 2025-09-01 00:29 UTC, resolved after 0 min, 1 update(s).

- Canonical URL: https://rewindex.com/company/twilio/incidents/y5yxgbw9bt0s
- Citation: Twilio, “Calls API returning 5xx” (2025-09-01 00:29 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/y5yxgbw9bt0s (CC BY 4.0).
- Markdown link: `[Twilio: Calls API returning 5xx (2025-09-01)](https://rewindex.com/company/twilio/incidents/y5yxgbw9bt0s)`


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Canonical: https://rewindex.com/company/twilio/incidents/y5yxgbw9bt0s · Markdown: https://rewindex.com/company/twilio/incidents/y5yxgbw9bt0s.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/y5yxgbw9bt0s · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T14:15:14.858Z