| Date | IP Address |
| 2018-08-03 | 13.209.228.62 (ClassC) |
| 2018-08-05 | 13.125.109.5 (ClassC) |
| 2019-01-05 | 13.124.20.27 (ClassC) |
| 2019-02-25 | 52.78.13.195 (ClassC) |
| 2021-01-30 | 99.84.191.93 (ClassC) |
| 2022-05-01 | 52.85.75.60 (ClassC) |
| 2022-05-02 | 52.85.75.3 (ClassC) |
| 2024-08-10 | 99.84.66.52 (ClassC) |
| 2024-09-15 | 99.84.66.73 (ClassC) |
| 2025-02-28 | 18.238.238.14 (ClassC) |
| 2025-04-25 | 99.84.66.128 (ClassC) |
| 2025-09-26 | 99.84.66.71 (ClassC) |
| 2025-12-10 | 3.169.173.32 (ClassC) |
| 2026-01-19 | 3.169.173.114 (ClassC) |
| Date | Domain | IP |
| barracuda.hangookprop.com | 2025-01-12 | 18.238.238.14 |
| antispam.hangookprop.com | 2024-03-04 | 99.84.66.73 |
| a.mx.hangookprop.com | 2024-12-27 | 99.84.66.73 |