| Date | IP Address |
| 2020-06-13 | 54.230.209.43 (ClassC) |
| 2020-06-29 | 13.249.71.77 (ClassC) |
| 2020-06-29 | 13.249.71.91 (ClassC) |
| 2020-08-29 | 13.33.163.49 (ClassC) |
| 2021-11-25 | 52.84.174.127 (ClassC) |
| 2022-01-12 | 13.32.145.54 (ClassC) |
| 2022-01-24 | 54.230.162.70 (ClassC) |
| 2022-03-03 | 108.138.159.104 (ClassC) |
| 2022-04-20 | 13.33.46.25 (ClassC) |
| 2024-06-18 | 204.246.191.109 (ClassC) |
| 2025-06-21 | 99.84.66.41 (ClassC) |
| 2025-09-25 | 204.246.191.31 (ClassC) |
| 2026-02-21 | 18.161.6.96 (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 |