| Date | IP Address |
| 2021-12-23 | 104.16.134.55 (ClassC) |
| 2024-03-11 | 104.18.239.165 (ClassC) |
| 2024-12-29 | 104.16.16.226 (ClassC) |
| Date | Domain | IP |
| soapbeta.ipo.gov.uk | 2024-12-12 | 104.16.16.226 |
| feesbeta.ipo.gov.uk | 2024-10-03 | 104.16.16.226 |
| wwwbeta.ipo.gov.uk | 2024-03-10 | 104.16.16.226 |
| signin.one.ipo.gov.uk | 2024-09-12 | 35.157.52.249 |
| test.one.ipo.gov.uk | 2024-09-13 | 104.16.16.226 |
| dev.one.ipo.gov.uk | 2024-03-11 | 104.16.16.226 |
| wwwbetacf.ipo.gov.uk | 2024-11-08 | 104.18.239.165 |
| north.ipo.gov.uk | 2024-12-29 | 104.18.239.165 |
| south.ipo.gov.uk | 2024-03-11 | 104.18.239.165 |
| fees.ipo.gov.uk | 2024-09-12 | 104.18.239.165 |
| www.ipo.gov.uk | 2024-10-06 | 104.18.239.165 |
| olfsa-www.ipo.gov.uk | 2024-09-12 | 104.16.16.226 |