| Date | IP Address |
| 2023-03-05 | 52.194.112.5 (ClassC) |
| 2023-04-02 | 13.112.83.215 (ClassC) |
| 2023-10-23 | 54.64.67.246 (ClassC) |
| 2024-05-09 | 54.249.47.247 (ClassC) |
| 2024-06-13 | 54.65.160.193 (ClassC) |
| 2024-10-19 | 57.181.103.66 (ClassC) |
| 2025-03-22 | 18.181.9.147 (ClassC) |
| 2025-05-13 | 52.195.253.44 (ClassC) |
| 2025-06-09 | 3.115.110.123 (ClassC) |
| 2025-08-07 | 54.150.130.78 (ClassC) |
| 2025-08-21 | 54.178.21.204 (ClassC) |
| 2025-09-24 | 57.181.253.232 (ClassC) |
| 2025-10-09 | 3.115.229.220 (ClassC) |
| 2026-01-05 | 54.95.211.56 (ClassC) |
| 2026-02-19 | 18.181.144.224 (ClassC) |
| Date | Domain | IP |
| dns1.nii.ac.jp | 2026-01-01 | 136.187.7.23 |
| dns2.nii.ac.jp | 2026-01-05 | 157.1.24.23 |
| nrid.nii.ac.jp | 2025-09-08 | 163.43.147.147 |
| ci.nii.ac.jp | 2024-06-06 | 52.197.36.24 |
| rdm.nii.ac.jp | 2025-07-13 | 3.114.30.127 |
| api.rdm.nii.ac.jp | 2025-07-13 | 3.114.30.127 |
| kaken.nii.ac.jp | 2026-02-04 | 163.43.147.147 |
| jc-test1.repo.nii.ac.jp | 2025-06-10 | 158.101.87.161 |
| jc-test2.repo.nii.ac.jp | 2025-09-20 | 153.125.237.70 |
| jc-niirdc-rc.repo.nii.ac.jp | 2025-11-27 | 158.101.87.161 |
| jc-ope-rc.repo.nii.ac.jp | 2026-01-18 | 158.101.87.161 |
| jc-niirdc-mig-rc.repo.nii.ac.jp | 2025-11-27 | 158.101.87.161 |
| jc-app-rc.repo.nii.ac.jp | 2025-09-08 | 158.101.87.161 |
| jc-niirdc-rc-cnri.repo.nii.ac.jp | 2025-05-07 | 158.101.87.161 |
| jgssdds.repo.nii.ac.jp | 2025-04-19 | 147.154.119.19 |
| jc-niirdc-latest.repo.nii.ac.jp | 2025-08-31 | 158.101.87.161 |
| minpaku.repo.nii.ac.jp | 2025-11-29 | 158.101.87.161 |
| cir.nii.ac.jp | 2025-08-21 | 54.178.21.204 |
| auth.cir.nii.ac.jp | 2024-06-03 | 54.249.93.149 |
| dsr.nii.ac.jp | 2026-01-30 | 136.187.88.100 |
| surveytoolkit.ir.rcos.nii.ac.jp | 2026-01-02 | 150.230.206.44 |
| www.nii.ac.jp | 2023-08-18 | 13.113.72.177 |
| agora.ex.nii.ac.jp | 2026-02-15 | 136.187.88.210 |