| Date | IP Address |
| 2016-08-11 | 54.192.89.175 (ClassC) |
| 2017-01-31 | 54.231.133.2 (ClassC) |
| 2017-05-05 | 54.231.133.242 (ClassC) |
| 2019-08-21 | 99.84.127.122 (ClassC) |
| 2021-06-07 | 13.226.178.43 (ClassC) |
| 2024-07-27 | 99.84.66.79 (ClassC) |
| 2024-11-29 | 99.84.66.5 (ClassC) |
| 2025-08-28 | 3.163.158.33 (ClassC) |
| 2025-09-13 | 99.84.66.6 (ClassC) |
| 2026-01-13 | 3.163.24.86 (ClassC) |
| 2026-01-20 | 3.163.24.36 (ClassC) |
| Date | Domain | IP |
| auth.acc.tkp.ohpen.com | 2025-11-19 | 3.163.24.129 |
| auth.prd.tkp.ohpen.com | 2024-08-15 | 18.161.6.19 |
| careers.ohpen.com | 2026-01-15 | 3.169.173.99 |
| www.ohpen.com | 2024-07-27 | 99.84.66.79 |