Voice Call Failures From a Subset of Twilio Phone Numbers to Vodafone in the United Kingdom of Great Britain and Northern Ireland

Update timeline

1. investigating Sep 23, 2026, 07:34 PM UTC

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

2. identified Sep 23, 2026, 07:35 PM UTC

   Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to Vodafone network subscribers in the United Kingdom of Great Britain and Northern Ireland. 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.

3. identified Sep 23, 2026, 08:37 PM UTC

   Twilio customers may be experiencing voice call failures from Twilio Mobile Numbers to Vodafone network subscribers in the United Kingdom of Great Britain and Northern Ireland. 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.

4. identified Sep 23, 2026, 10:38 PM UTC

   Twilio customers may be experiencing voice call failures from a subset of Twilio Mobile Numbers to Vodafone network subscribers in the United Kingdom of Great Britain and Northern Ireland. 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.

5. identified Sep 24, 2026, 02:38 AM UTC

   Twilio customers may be experiencing voice call failures from a subset of Twilio Mobile Numbers to Vodafone network subscribers in the United Kingdom. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 8 hours or as soon as more information becomes available.

6. identified Sep 24, 2026, 10:38 AM UTC

   Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to Vodafone network subscribers in the United Kingdom. Our team has identified the cause, and is working to resolve the issue. We will provide another update in 16 hours or as soon as more information becomes available.

7. identified Sep 24, 2026, 03:29 PM UTC

   Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to Vodafone network subscribers in the United Kingdom. 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.

8. identified Sep 24, 2026, 04:30 PM UTC

   Twilio customers may be experiencing voice call failures from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom of Great Britain and Northern Ireland. 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.

9. identified Sep 24, 2026, 06:31 PM UTC

   Twilio customers may be experiencing voice call failures from Twilio Mobile Numbers to Vodafone network subscribers in the United Kingdom of Great Britain and Northern Ireland. 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.

10. monitoring Sep 24, 2026, 09:19 PM UTC

    We have observed a recovery in voice calls from a subset of Twilio Phone Numbers to Vodafone network subscribers in the United Kingdom of Great Britain and Northern Ireland and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.

11. resolved Sep 24, 2026, 11:20 PM UTC

    The incident has been resolved and voice calls from a subset of Twilio Phone Numbers to network subscribers in the United Kingdom of Great Britain and Northern Ireland are operating normally.