Twilio incident
Voice Call Audio Quality Degradation Between Twilio Phone Numbers and Multiple Networks in United Kingdom
Twilio experienced a minor incident on May 1, 2026 affecting Voice, Europe, lasting 10h 30m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating May 01, 2026, 06:20 PM UTC
Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks 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.
- identified May 01, 2026, 06:32 PM UTC
Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks 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.
- identified May 01, 2026, 07:33 PM UTC
Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. 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 May 01, 2026, 09:33 PM UTC
Twilio customers may be experiencing voice call audio quality degradation between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom. 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.
- monitoring May 02, 2026, 12:57 AM UTC
We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom and are monitoring service stability. We will provide another update in 2 hours or as soon as more information becomes available.
- monitoring May 02, 2026, 02:58 AM UTC
We have observed a recovery in voice calls between Twilio Phone Numbers and network subscribers on multiple networks in the United Kingdom and are monitoring service stability. We will provide another update in 4 hours or as soon as more information becomes available.
- resolved May 02, 2026, 04:50 AM UTC
The incident has been resolved and voice calls between Twilio Phone Numbers and network subscribers on affected networks in the United Kingdom are operating normally.