# Twilio: Silent Network Authentication (SNA) Missing Redirects on Vodafone in United Kingdom

- Provider: [Twilio](https://outages.cc/twilio.md)
- Type: Incident
- State: Resolved
- Worst impact: Degraded performance
- Started: 2026-10-24 18:42 UTC
- Resolved: 2026-10-25 13:22 UTC (lasted 18 h 40 min)
- Components: Verify Silent Network Auth, CARRIER NETWORK - Verify Silent Network Auth
- Official update: https://stspg.io/jcnbk0q9l16j

## Updates from Twilio

### resolved, 2026-10-25 13:22 UTC

The incident has been resolved and API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom are operating normally.

### monitoring, 2026-10-25 11:15 UTC

We have observed the recovery in API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom and are monitoring service stability. We will provide another update in 8 hours or as soon as more information becomes available.

### monitoring, 2026-10-25 07:15 UTC

We have observed the recovery in API transactions for Silent Network Authentication (SNA) on Vodafone 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.

### monitoring, 2026-10-25 05:10 UTC

We have observed the recovery in API transactions for Silent Network Authentication (SNA) on Vodafone 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.

### investigating, 2026-10-25 02:20 UTC

Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 8 hours or as soon as more information becomes available.

### investigating, 2026-10-24 22:20 UTC

Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 4 hours or as soon as more information becomes available.

### investigating, 2026-10-24 19:43 UTC

Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 2 hours or as soon as more information becomes available.

### investigating, 2026-10-24 18:42 UTC

Twilio customers may be experiencing device verification timeouts during API transactions for Silent Network Authentication (SNA) on Vodafone in the United Kingdom. Our team is actively investigating the issue. API transactions may temporarily fail over to secondary methods like SMS OTP. We will provide another update in 1 hour or as soon as more information becomes available.