# Twilio: Voice Call Failures from a Subset of Twilio Mobile Numbers to Telefonica Argentina

> Twilio status incident “Voice Call Failures from a Subset of Twilio Mobile Numbers to Telefonica Argentina” on 2026-11-05: impact minor (vendor’s label), 3 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/twilio/incidents/ry5cj1mk6r60
Last updated: 2026-11-05T20:24:09Z

- Impact (vendor’s label): minor
- Status: identified · edited after publishing
- Started: 2026-11-05 18:34 UTC · Resolved: not resolved · Duration: ongoing
- Updates: 3 · Affected components: CARRIER NETWORK - Voice, Latin America, Voice, Latin America
- [Vendor status page: https://status.twilio.com/incidents/ry5cj1mk6r60](https://status.twilio.com/incidents/ry5cj1mk6r60)
- [Company: Twilio](https://rewindex.com/company/twilio.md)

## Timeline of updates

- **investigating** 2026-11-05 18:34 UTC: Twilio customers may be experiencing voice call failures from a subset of Twilio Mobile Numbers to network subscribers in Argentina. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
- **identified** 2026-11-05 19:12 UTC: Twilio customers may be experiencing voice call failures from a subset of Twilio Mobile Numbers to Telefonica network subscribers in Argentina. 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.
- **identified** 2026-11-05 20:13 UTC: Twilio customers may be experiencing voice call failures from a subset of Twilio Mobile Numbers to Telefonica network subscribers in Argentina. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 2 hours or as soon as more information becomes available.

## Rewindex changes for this incident

- 2026-11-05 19:14 UTC: [Incident updated: Voice Call Failures from a Subset of Twilio Mobile Numbers to Telefonica Argentina](https://rewindex.com/change/r996f1bbc27f33f.md)
- 2026-11-05 20:24 UTC: [Incident updated: Voice Call Failures from a Subset of Twilio Mobile Numbers to Telefonica Argentina](https://rewindex.com/change/rc38673f277a6b6.md)

## Cite this

Status incident (vendor impact label: minor) posted by Twilio, started 2026-11-05 18:34 UTC, not resolved, 3 update(s); edited after publishing.

- Canonical URL: https://rewindex.com/company/twilio/incidents/ry5cj1mk6r60
- Citation: Twilio, “Voice Call Failures from a Subset of Twilio Mobile Numbers to Telefonica Argentina” (2026-11-05 18:34 UTC). Archived by Rewindex: https://rewindex.com/company/twilio/incidents/ry5cj1mk6r60 (CC BY 4.0).
- Markdown link: `[Twilio: Voice Call Failures from a Subset of Twilio Mobile Numbers to Telefonica Argentina (2026-11-05)](https://rewindex.com/company/twilio/incidents/ry5cj1mk6r60)`


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Canonical: https://rewindex.com/company/twilio/incidents/ry5cj1mk6r60 · Markdown: https://rewindex.com/company/twilio/incidents/ry5cj1mk6r60.md · JSON: https://rewindex.com/api/v1/companies/twilio/incidents/ry5cj1mk6r60 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-06T16:52:00.981Z