| Date | IP Address |
| 2020-05-16 | 54.230.29.125 (ClassC) |
| 2020-05-16 | 54.230.29.50 (ClassC) |
| 2020-08-26 | 99.84.42.50 (ClassC) |
| 2020-08-26 | 99.84.42.55 (ClassC) |
| 2020-08-26 | 99.84.42.90 (ClassC) |
| 2020-08-26 | 99.84.42.3 (ClassC) |
| 2020-10-15 | 13.226.49.19 (ClassC) |
| 2020-10-15 | 13.226.49.25 (ClassC) |
| 2020-10-15 | 13.226.49.37 (ClassC) |
| 2021-01-18 | 52.85.86.57 (ClassC) |
| 2021-02-13 | 13.226.159.7 (ClassC) |
| 2023-12-22 | 18.173.121.106 (ClassC) |
| 2023-12-22 | 18.173.121.77 (ClassC) |
| 2024-02-02 | 99.86.38.43 (ClassC) |
| 2024-11-27 | 3.163.24.77 (ClassC) |
| 2025-12-19 | 18.161.6.129 (ClassC) |
| 2026-01-15 | 18.161.6.21 (ClassC) |
| 2026-01-24 | 18.161.6.9 (ClassC) |
| Date | Domain | IP |
| q35.ctf.katsudon.org | 2025-06-23 | 18.161.6.129 |