| Date | IP Address |
| 2018-06-28 | 35.178.8.206 (ClassC) |
| 2025-12-04 | 18.171.5.36 (ClassC) |
| 2025-12-24 | 18.175.2.8 (ClassC) |
| 2026-01-11 | 13.134.238.77 (ClassC) |
| 2026-01-26 | 13.43.190.175 (ClassC) |
| Date | Domain | IP |
| override-dev.app-notprod.digitalpermissions.homeoffice.gov.uk | 2025-12-04 | 13.41.20.186 |
| doc-check-dev.app-notprod.digitalpermissions.homeoffice.gov.uk | 2025-12-04 | 18.171.5.36 |
| admin-dev.app-notprod.digitalpermissions.homeoffice.gov.uk | 2025-12-04 | 13.134.104.85 |
| passenger-dev.app-notprod.digitalpermissions.homeoffice.gov.uk | 2025-12-04 | 13.41.20.186 |