| Date | IP Address |
| 2025-01-23 | 185.26.51.150 (ClassC) |
| Date | Domain | IP |
| edunsaaja.prh.fi | 2025-01-07 | 185.26.51.150 |
| avoindata.prh.fi | 2024-07-22 | 62.165.164.156 |
| virre.prh.fi | 2024-12-27 | 62.165.164.209 |
| auth.prh.fi | 2024-12-27 | 62.165.164.213 |
| asiointi.prh.fi | 2024-12-27 | 62.165.164.158 |
| uutiskirje-digitalous.prh.fi | 2024-12-06 | 77.86.188.211 |
| www.prh.fi | 2024-12-06 | 94.237.118.251 |