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

Incident Report for Twilio

Resolved

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

Posted Nov 13, 2026 - 11:58 PST

Monitoring

We have observed recovery in API transactions for Silent Network Authentication (SNA) and for Lookup API transactions 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.

Posted Nov 13, 2026 - 09:56 PST

Update

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 4 hours or as soon as more information becomes available.

Posted Nov 13, 2026 - 09:53 PST

Update

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 2 hours or as soon as more information becomes available.

Posted Nov 13, 2026 - 07:52 PST

Identified

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.

Posted Nov 13, 2026 - 06:52 PST

Investigating

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.

Posted Nov 13, 2026 - 06:47 PST

This incident affected: CARRIER NETWORK (Verify Silent Network Auth, Lookup Identity Match, Lookup SIM Swap, Legacy Identity MatchAndAttributes).