---
id: "INC-twilio-ry5cj1mk6r60"
kind: "incident"
aliases: []
title: "Twilio: Voice Call Failures from a Subset of Twilio Mobile Numbers to Argentina"
severity: "medium"
cvss: null
epss: null
exploited: false
status: "open"
category: "vendor"
products: [{"name": "Twilio", "fixed": [], "affected": "", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["incident", "ops", "sms", "twilio", "vendor"]
not_affected_if: []
published_at: "2026-11-05T18:34:08+00:00"
first_seen_at: "2026-11-05T18:35:34+00:00"
updated_at: "2026-11-05T19:14:29+00:00"
sources: [{"source": "statuspage", "url": "https://stspg.io/t4vp65pctxst", "first_seen_at": "2026-11-05T18:35:34+00:00"}]
exploit_sources: []
---

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

## Affected

- vendor:Twilio affected range not listed fixed no fixed version listed

## Timeline

- 2026-11-05T18:35:34+00:00 statuspage https://stspg.io/t4vp65pctxst

## From the sources

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.

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