| Date | IP Address |
| 2025-09-16 | 203.181.232.2 (ClassC) |
| Date | Domain | IP |
| kenshin-db.niph.go.jp | 2024-10-10 | 54.168.63.180 |
| h-crisis.niph.go.jp | 2024-11-21 | 3.163.24.90 |
| ns.niph.go.jp | 2025-09-16 | 203.181.232.2 |
| jrct.niph.go.jp | 2024-06-18 | 204.246.191.109 |
| www.niph.go.jp | 2025-07-21 | 203.181.232.5 |