| Date | IP Address |
| 2015-01-23 | 222.106.174.62 (ClassC) |
| 2024-06-08 | 210.216.122.62 (ClassC) |
| 2024-08-10 | 3.36.239.98 (ClassC) |
| 2024-09-02 | 43.200.0.189 (ClassC) |
| 2024-11-12 | 52.79.161.201 (ClassC) |
| 2024-11-24 | 3.34.82.185 (ClassC) |
| 2024-11-27 | 3.37.58.17 (ClassC) |
| 2024-12-19 | 15.165.165.46 (ClassC) |
| 2025-01-19 | 43.202.140.129 (ClassC) |
| Date | Domain | IP |
| img.ypbooks.co.kr | 2025-01-01 | 210.216.122.11 |
| www.ypbooks.co.kr | 2023-10-23 | 210.216.122.62 |