| Date | IP Address |
| 2024-07-04 | 43.201.190.241 (ClassC) |
| 2025-08-31 | 43.200.161.17 (ClassC) |
| 2025-09-08 | 43.200.98.129 (ClassC) |
| 2025-10-22 | 52.79.58.216 (ClassC) |
| Date | Domain | IP |
| pen.hanter21.co.kr | 2025-10-23 | 43.200.35.58 |
| writer.hanter21.co.kr | 2025-08-31 | 43.200.161.17 |