| Date | IP Address |
| 2020-07-24 | 99.84.111.58 (ClassC) |
| 2024-10-16 | 3.165.160.16 (ClassC) |
| 2024-11-05 | 3.165.160.34 (ClassC) |
| Date | Domain | IP |
| signinproxy-prod2.notprod.devops.ncsc.gov.uk | 2024-08-06 | 99.84.66.80 |
| signinproxy-prod.notprod.devops.ncsc.gov.uk | 2024-10-16 | 3.163.189.82 |
| acdhub-stage.notprod.devops.ncsc.gov.uk | 2024-06-25 | 99.84.66.53 |
| user-api-mailcheck-stage.notprod.devops.ncsc.gov.uk | 2024-05-30 | 18.135.37.203 |
| signin-stage.notprod.devops.ncsc.gov.uk | 2024-07-12 | 99.84.66.17 |
| cf.signin-stage.notprod.devops.ncsc.gov.uk | 2024-02-25 | 99.84.66.16 |
| partymanager-stage.notprod.devops.ncsc.gov.uk | 2024-10-16 | 18.161.6.11 |
| acdhub-int.notprod.devops.ncsc.gov.uk | 2024-07-12 | 3.163.24.100 |
| signin-int.notprod.devops.ncsc.gov.uk | 2024-10-16 | 3.165.160.16 |
| cf.signin-int.notprod.devops.ncsc.gov.uk | 2024-06-25 | 3.163.24.117 |
| user-api-party-manager-int.notprod.devops.ncsc.gov.uk | 2024-10-11 | 52.208.126.20 |
| partymanager-int.notprod.devops.ncsc.gov.uk | 2024-10-24 | 204.246.191.47 |
| user-api-signin-test.notprod.devops.ncsc.gov.uk | 2024-05-30 | 3.9.253.13 |
| user-api-signin.api.devops.ncsc.gov.uk | 2024-05-30 | 35.179.87.102 |