| Date | IP Address |
| 2022-03-18 | 147.154.1.1 (ClassC) |
| 2024-06-27 | 147.154.112.73 (ClassC) |
| 2024-08-02 | 130.35.103.62 (ClassC) |
| 2024-11-02 | 192.29.105.247 (ClassC) |
| 2025-06-19 | 147.154.116.181 (ClassC) |
| 2025-07-31 | 138.1.18.60 (ClassC) |
| Date | Domain | IP |
| stg.nkanzai.co.jp | 2025-03-04 | 18.161.6.42 |
| connect-irep.nkanzai.co.jp | 2024-06-27 | 147.154.112.73 |
| www.nkanzai.co.jp | 2024-07-27 | 3.163.24.81 |