Outage in SendGrid
Silent Network Authentication (SNA) Failure Increase and Gateway API (Lookup API) Failure Increase in United Kingdom
Resolved MinorIncident Report
Summary AI Generated
For approximately 5 hours, Twilio customers in the United Kingdom experienced verification failures with Silent Network Authentication (SNA) and failure responses from the Lookup API, with affected transactions falling back to SMS OTP as a secondary method. The root cause was identified during the incident, and recovery was observed before full resolution was confirmed. All SNA and Lookup API transactions in the UK returned to normal operation upon resolution.
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.
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Latest Updates ( sorted recent to last )
RESOLVED
about 3 hours ago - at 11/13/2026 07:58PM
The incident has been resolved and API transactions for Silent Network Authentication (SNA) and Lookup API transactions involving the United Kingdom are operating normally.
MONITORING
about 5 hours ago - at 11/13/2026 05:56PM
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.
IDENTIFIED
about 5 hours ago - at 11/13/2026 05:53PM
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.
IDENTIFIED
about 7 hours ago - at 11/13/2026 03:52PM
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.
IDENTIFIED
about 8 hours ago - at 11/13/2026 02:52PM
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
about 8 hours ago - at 11/13/2026 02:47PM
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.
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