# SendGrid: Gateway API (Lookup API) Failure Increase on Three in United Kingdom

- Provider: [SendGrid](https://outages.cc/sendgrid.md)
- Type: Incident
- State: Resolved
- Worst impact: Degraded performance
- Started: 2026-10-27 15:15 UTC
- Resolved: 2026-10-27 19:27 UTC (lasted 4 h 12 min)
- Components: Lookup Identity Match, Lookup SIM Swap, Legacy Identity MatchAndAttributes, CARRIER NETWORK - Lookup Identity Match, CARRIER NETWORK - Lookup SIM Swap, CARRIER NETWORK - Legacy Identity MatchAndAttributes
- Official update: https://stspg.io/ft58w67k80g0

## Updates from SendGrid

### resolved, 2026-10-27 19:27 UTC

The incident has been resolved and Lookup API transactions involving Three in the United Kingdom are operating normally.

### monitoring, 2026-10-27 17:19 UTC

We have observed the recovery for Lookup API transactions involving Three 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, 2026-10-27 16:17 UTC

Twilio customers may be experiencing failure responses for Lookup API transactions on Three in 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.

### investigating, 2026-10-27 15:15 UTC

Twilio customers may be experiencing failure responses for Lookup API transactions on Three in the United Kingdom. Our team is actively investigating the issue. We will provide another update in 1 hour or as soon as more information becomes available.