| Date | IP Address |
| 2021-04-22 | 54.95.36.87 (ClassC) |
| 2026-03-02 | 183.90.235.35 (ClassC) |
| Date | Domain | IP |
| nebula.kazenokuni.jp | 2026-02-18 | 183.90.235.35 |
| plsbeta.kazenokuni.jp | 2026-02-03 | 183.90.235.35 |
| scheduling.kazenokuni.jp | 2026-02-02 | 183.90.235.35 |
| mail.kazenokuni.jp | 2026-02-27 | 183.90.235.35 |
| sql.kazenokuni.jp | 2026-01-16 | 183.90.235.35 |
| videocdn.kazenokuni.jp | 2026-02-16 | 183.90.235.35 |
| chuko.kazenokuni.jp | 2026-02-26 | 183.90.235.35 |
| ls.kazenokuni.jp | 2026-02-02 | 183.90.235.35 |
| admissions.kazenokuni.jp | 2026-02-21 | 183.90.235.35 |
| notify.kazenokuni.jp | 2026-02-26 | 183.90.235.35 |