Twilio - Voice Calls Failures From Multiple Networks to a subset of Twilio Numbers in United Kingdom

Update timeline

1. investigating Jan 27, 2026, 10:49 PM UTC

   We have detected potential service disruption through our monitoring systems and are actively investigating. A detailed assessment of the impact and affected services will be provided within the next 30 minutes.

2. investigating Jan 27, 2026, 10:51 PM UTC

   Twilio are observing Voice Calls Failures From Multiple Networks to a subset of Twilio Numbers in United Kingdom. Twilio are currently working with their carrier partner to resolve the issue. We expect to provide another update in 1 hour or as soon as more information becomes available.

3. monitoring Jan 27, 2026, 11:44 PM UTC

   Twilio have started seeing recovery for Voice Calls Failures From Multiple Networks to a subset of Twilio Numbers in United Kingdom. They will continue to monitor to ensure a full recovery. We expect to provide another update in 2 hours or as soon as more information becomes available.

4. investigating Jan 28, 2026, 04:27 AM UTC

   Twilio are continuing to observe voice call failures from multiple networks to a subset of Twilio numbers in the United Kingdom. They are currently working with their carrier partner to resolve the issue. We expect to provide another update in 4 hours or as soon as more information becomes available.

5. monitoring Jan 28, 2026, 08:12 AM UTC

   Twilio has started seeing recovery for voice calls from multiple networks to a subset of Twilio numbers in the United Kingdom. Twilio will continue to monitor to ensure a full recovery. We expect to provide another update in 4 hours or as soon as more information becomes available.

6. resolved Jan 28, 2026, 10:31 AM UTC

   Voice Calls Failures From Multiple Networks to a subset of Twilio Numbers in the United Kingdom have been resolved and are operating normally at this time.