# Twilio: Silent Network Authentication (SNA) Failure Increase and Gateway API (Lookup API) Failure Increase in United Kingdom

> Twilio reports failures in Silent Network Authentication and Lookup API transactions in the United Kingdom. The affected components include Verify Silent Network Auth, Lookup Identity Match, Lookup SIM Swap, and Legacy Identity MatchAndAttributes. Twilio has identified the cause and is working to resolve the issue.

- Provider: [Twilio](https://outages.live/twilio.md)
- Type: Incident
- State: identified
- Worst impact: Degraded performance
- Started: 2026-11-13 14:47 UTC
- Components: Verify Silent Network Auth, Lookup Identity Match, Lookup SIM Swap, Legacy Identity MatchAndAttributes, CARRIER NETWORK - Verify Silent Network Auth, CARRIER NETWORK - Lookup Identity Match, CARRIER NETWORK - Lookup SIM Swap, CARRIER NETWORK - Legacy Identity MatchAndAttributes
- Official update: https://stspg.io/q7mwctqn3ghg

## Updates from Twilio

### identified, 2026-11-13 14:54 UTC

Twilio customers may be experiencing verification failures during API transactions for Silent Network Authentication (SNA) and failure responses for Lookup API transactions in the United Kingdom. API transactions may temporarily fail over to secondary methods like SMS OTP. 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.

### investigating, 2026-11-13 14:48 UTC

Twilio customers may be experiencing verification failures during API transactions for Silent Network Authentication (SNA) and failure responses for Lookup API transactions 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.