| Date | IP Address |
| 2020-05-18 | 54.249.61.96 (ClassC) |
| 2025-06-08 | 52.197.136.128 (ClassC) |
| 2025-06-12 | 57.182.86.235 (ClassC) |
| 2025-06-17 | 52.199.84.61 (ClassC) |
| 2025-06-20 | 18.180.46.242 (ClassC) |
| 2025-08-25 | 52.199.167.221 (ClassC) |
| 2025-08-29 | 57.181.245.150 (ClassC) |
| 2025-09-02 | 54.64.165.136 (ClassC) |
| 2025-09-20 | 52.69.50.155 (ClassC) |
| 2025-10-16 | 18.182.245.54 (ClassC) |
| Date | Domain | IP |
| iuhwns1.iuhw.ac.jp | 2025-10-11 | 210.249.174.2 |
| iuhwns2.iuhw.ac.jp | 2025-09-07 | 210.249.174.3 |
| otawara.iuhw.ac.jp | 2025-06-08 | 52.197.136.128 |
| mita.iuhw.ac.jp | 2025-09-13 | 210.249.174.56 |
| atami.iuhw.ac.jp | 2025-09-07 | 210.249.174.56 |
| hospital.iuhw.ac.jp | 2025-08-18 | 210.249.174.56 |
| www.iuhw.ac.jp | 2023-08-18 | 52.196.136.110 |