| Date | IP Address |
| 2018-06-27 | 35.178.8.206 (ClassC) |
| 2025-12-04 | 13.134.104.85 (ClassC) |
| 2025-12-30 | 13.134.238.77 (ClassC) |
| 2026-02-24 | 13.135.45.50 (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 |