| Date | IP Address |
| 2022-03-22 | 13.115.86.43 (ClassC) |
| 2024-06-03 | 54.249.93.149 (ClassC) |
| 2024-08-31 | 18.178.200.13 (ClassC) |
| 2024-10-22 | 18.178.66.64 (ClassC) |
| 2025-02-05 | 57.182.25.127 (ClassC) |
| 2025-02-10 | 13.114.131.221 (ClassC) |
| 2025-05-06 | 54.64.4.5 (ClassC) |
| 2025-08-03 | 13.113.158.187 (ClassC) |
| 2025-09-08 | 57.182.96.250 (ClassC) |
| 2025-09-28 | 3.113.149.218 (ClassC) |
| 2025-11-26 | 13.159.63.169 (ClassC) |
| Date | Domain | IP |
| dns1.nii.ac.jp | 2025-09-25 | 136.187.7.23 |
| dns2.nii.ac.jp | 2025-09-24 | 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 | 2025-05-20 | 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 | 2025-09-08 | 158.101.87.161 |
| jc-ope-rc.repo.nii.ac.jp | 2025-09-08 | 158.101.87.161 |
| jc-niirdc-mig-rc.repo.nii.ac.jp | 2025-06-10 | 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 | 2025-02-13 | 147.154.8.35 |
| jc-niirdc-latest.repo.nii.ac.jp | 2025-08-31 | 158.101.87.161 |
| minpaku.repo.nii.ac.jp | 2025-09-25 | 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 | 2025-08-14 | 136.187.88.100 |
| surveytoolkit.ir.rcos.nii.ac.jp | 2025-05-01 | 150.230.206.44 |
| www.nii.ac.jp | 2023-08-18 | 13.113.72.177 |
| agora.ex.nii.ac.jp | 2025-02-05 | 136.187.88.210 |