| Date | IP Address |
| 2020-10-28 | 13.209.140.157 (ClassC) |
| 2024-07-20 | 3.36.157.175 (ClassC) |
| 2025-03-30 | 3.35.121.163 (ClassC) |
| 2025-04-04 | 43.203.74.14 (ClassC) |
| 2025-04-12 | 13.209.241.20 (ClassC) |
| 2025-07-30 | 3.38.0.204 (ClassC) |
| Date | Domain | IP |
| public.realclass.co.kr | 2024-10-01 | 99.84.66.119 |
| cf.realclass.co.kr | 2024-07-05 | 204.246.191.26 |
| admin.realclass.co.kr | 2024-07-20 | 3.36.157.175 |
| www.realclass.co.kr | 2024-07-08 | 3.163.24.77 |