| Date | IP Address |
| 2018-06-27 | 216.3.50.234 (ClassC) |
| 2018-06-28 | 216.3.50.57 (ClassC) |
| 2019-03-22 | 204.237.142.130 (ClassC) |
| 2024-06-13 | 23.215.176.137 (ClassC) |
| 2025-04-12 | 23.46.228.7 (ClassC) |
| 2025-07-23 | 23.216.147.76 (ClassC) |
| 2025-08-03 | 23.216.147.54 (ClassC) |
| Date | Domain | IP |
| mdc.pd.study.jp | 2024-07-28 | 23.216.147.64 |
| yakuzemi.pd.study.jp | 2024-06-13 | 23.215.176.137 |
| kanpuri.pd.study.jp | 2022-02-15 | 23.56.3.96 |
| jpl.pd.study.jp | 2024-03-13 | 23.216.147.68 |