Voice Call Audio Quality Degradation from a Subset of Twilio Mobile Numbers to Claro Colombia

What to do

• Check whether you use Twilio Voice, Latin America. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 36m it lasted.

  Anything that failed between 2026-11-06 15:12 UTC and 2026-11-06 15:49 UTC may need a replay.

• Subscribe to Twilio's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=twilio works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from Twilio 3

1. investigatingNov 6, 2026, 3:12 PM UTC

   Twilio customers may be experiencing voice call audio quality degradation 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.

   provider

2. monitoringNov 6, 2026, 3:48 PM UTC

   We have observed a recovery in voice calls from a subset of Twilio Mobile Numbers to network subscribers in Colombia and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

   provider

3. resolvedNov 6, 2026, 3:49 PM UTC

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

   provider

Corrections

None so far.

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