| Date | IP Address |
| 2024-11-25 | 35.75.46.41 (ClassC) |
| 2025-02-07 | 52.68.146.224 (ClassC) |
| 2025-03-01 | 35.73.107.190 (ClassC) |
| 2025-03-06 | 52.195.78.93 (ClassC) |
| 2025-03-15 | 54.199.228.109 (ClassC) |
| 2025-04-22 | 13.113.219.50 (ClassC) |
| 2025-06-10 | 57.182.127.53 (ClassC) |
| 2025-06-20 | 35.72.197.21 (ClassC) |
| 2025-07-21 | 13.114.22.199 (ClassC) |
| 2025-09-19 | 54.248.117.201 (ClassC) |
| Date | Domain | IP |
| idc.ikubunkan.ed.jp | 2024-11-25 | 35.75.38.228 |
| sag.ikubunkan.ed.jp | 2025-08-21 | 35.73.187.64 |
| sah.ikubunkan.ed.jp | 2025-08-25 | 52.196.185.190 |
| sam.ikubunkan.ed.jp | 2025-08-30 | 35.73.139.236 |
| idm.ikubunkan.ed.jp | 2025-09-02 | 52.68.27.237 |
| sso.ikubunkan.ed.jp | 2024-11-25 | 35.75.46.41 |
| idc-test.ikubunkan.ed.jp | 2024-11-25 | 18.177.110.17 |