| Date | IP Address |
| 2018-10-31 | 13.125.167.196 (ClassC) |
| 2018-11-14 | 52.79.79.204 (ClassC) |
| 2018-11-16 | 13.209.31.123 (ClassC) |
| 2018-12-06 | 54.180.111.165 (ClassC) |
| 2020-04-28 | 13.209.196.0 (ClassC) |
| 2020-06-29 | 13.125.71.224 (ClassC) |
| 2024-06-15 | 18.161.6.121 (ClassC) |
| 2025-07-23 | 18.161.6.127 (ClassC) |
| 2025-09-17 | 18.161.6.93 (ClassC) |
| 2026-01-19 | 18.161.6.110 (ClassC) |
| Date | Domain | IP |
| www.jbrain.co.kr | 2025-03-08 | 18.161.6.110 |