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Outage in Twilio

Voice Call Failures from a Subset of Twilio Mobile Numbers to Claro Nework in Colombia

Resolved Minor
July 30, 2026 - Started about 17 hours ago - Lasted about 6 hours
Official incident page

Incident Report

Summary AI Generated

Twilio experienced a 5.7-hour incident where voice calls from a subset of Twilio phone numbers to Claro network subscribers in Colombia were failing. The issue affected Twilio's Voice services in Latin America, with the root cause identified early in the investigation. The incident was fully resolved on July 30, 2026, with voice calls to Claro subscribers in Colombia returning to normal operation.

Twilio customers may be experiencing voice call failures from a subset of Twilio Mobile Numbers to Claro network subscribers in Colombia. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.
Components affected
Twilio Voice, Latin America

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Latest Updates ( sorted recent to last )
RESOLVED about 12 hours ago - at 07/31/2026 02:09AM

The incident has been resolved and voice calls from a subset of Twilio Phone Numbers to Claro network subscribers in Colombia are operating normally.

IDENTIFIED about 13 hours ago - at 07/31/2026 12:41AM

Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to Claro network subscribers in Colombia. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 4 hours or as soon as more information becomes available.

IDENTIFIED about 15 hours ago - at 07/30/2026 10:39PM

Twilio customers may be experiencing voice call failures from a subset of Twilio Mobile Numbers to Claro network subscribers in Colombia. 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.

IDENTIFIED about 16 hours ago - at 07/30/2026 09:33PM

Twilio customers may be experiencing voice call failures from a subset of Twilio Mobile Numbers to Claro network subscribers in Colombia. 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 about 17 hours ago - at 07/30/2026 08:48PM

Twilio customers may be experiencing voice call failures from a subset of Twilio Mobile Numbers to network subscribers in Colombia. 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.

INVESTIGATING about 17 hours ago - at 07/30/2026 08:28PM

Twilio customers may be experiencing voice call failures from a subset of Twilio Mobile Numbers to Claro network subscribers in Colombia. Our team is actively investigating this issue. We will provide another update in 1 hour or as soon as more information becomes available.

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