# Twilio: Outbound Call Failures to a Subset of UK Numbers

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2023-05-09 11:19 UTC · Resolved: 2023-05-09 16:17 UTC · Duration: 5.0 h
- Updates: 1
- [Vendor status page: https://status.twilio.com/incidents/rfy1nhvwht6c](https://status.twilio.com/incidents/rfy1nhvwht6c)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Part of an outage event

- [GitHub outage, May 9, 2023: 7 vendors, 9 incidents](https://rewindex.com/events/2023-05-09-github)
- This incident started in the same window without naming GitHub (timing only, not evidence of a link). (timing only, posted +3 h 12 min vs GitHub’s own post)

```mermaid
flowchart LR
  root["GitHub<br/>posted 08:07 UTC"]:::root
  h4["1 to 4 hours later<br/>2 vendors, 2 blamed GitHub<br/>v0, Vercel"]:::blames
  root --> h4
  me["Twilio (this incident)<br/>posted +3 h 12 min"]:::me
  root -.->|"same window"| me
```

_Detected automatically from incidents that started together and named the same provider; a link means one incident named another vendor, not a confirmed cause._

## Timeline of updates

- **resolved** 2023-05-09 16:17 UTC: We are no longer experiencing outbound call failures to a subset of UK numbers. This incident has been resolved.

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


---
Canonical: https://rewindex.com/company/twilio/incidents/rfy1nhvwht6c · Markdown: https://rewindex.com/company/twilio/incidents/rfy1nhvwht6c.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/rfy1nhvwht6c · Generated 2026-10-20T01:33:48.337Z