| Date | IP Address |
| 2013-10-02 | 121.78.175.161 (ClassC) |
| 2014-10-15 | 121.78.175.154 (ClassC) |
| 2014-10-16 | 121.78.175.152 (ClassC) |
| 2025-05-11 | 222.122.86.254 (ClassC) |
| 2026-02-20 | 112.175.247.31 (ClassC) |
| Date | Domain | IP |
| allgmae.infomaster.co.kr | 2026-02-19 | 112.175.247.31 |
| grayspace.infomaster.co.kr | 2026-02-20 | 112.175.247.31 |
| gate.infomaster.co.kr | 2026-02-20 | 112.175.247.31 |
| auth.infomaster.co.kr | 2026-02-06 | 112.175.247.31 |
| eml.infomaster.co.kr | 2026-02-07 | 112.175.247.31 |
| antispam.infomaster.co.kr | 2026-02-06 | 112.175.247.31 |
| admin.infomaster.co.kr | 2026-02-06 | 112.175.247.31 |
| auto.infomaster.co.kr | 2026-02-06 | 112.175.247.31 |
| hunter.infomaster.co.kr | 2026-02-06 | 112.175.247.31 |
| cs.infomaster.co.kr | 2026-02-06 | 112.175.247.31 |
| box.infomaster.co.kr | 2026-02-06 | 112.175.247.31 |