| Date | IP Address |
| 2023-03-22 | 54.150.19.35 (ClassC) |
| 2025-02-06 | 18.178.241.209 (ClassC) |
| 2025-05-21 | 54.249.125.131 (ClassC) |
| 2025-10-16 | 35.79.118.140 (ClassC) |
| 2025-10-26 | 18.182.212.137 (ClassC) |
| 2026-02-24 | 13.114.185.34 (ClassC) |
| Date | Domain | IP |
| www.sekigaku.net | 2025-10-27 | 18.182.212.137 |