| Date | IP Address |
| 2020-04-17 | 99.84.206.16 (ClassC) |
| 2020-04-18 | 13.33.87.24 (ClassC) |
| 2020-04-18 | 13.33.87.97 (ClassC) |
| 2020-09-01 | 13.225.78.13 (ClassC) |
| 2020-11-07 | 99.86.111.13 (ClassC) |
| 2020-11-17 | 13.225.31.4 (ClassC) |
| 2020-11-25 | 13.225.25.33 (ClassC) |
| 2023-11-01 | 3.163.24.89 (ClassC) |
| 2024-10-05 | 3.163.24.19 (ClassC) |
| 2024-11-12 | 3.163.24.38 (ClassC) |
| 2024-12-30 | 13.224.14.77 (ClassC) |
| 2025-01-18 | 13.224.14.27 (ClassC) |
| 2025-01-28 | 13.224.14.74 (ClassC) |
| 2025-06-29 | 52.84.162.96 (ClassC) |
| 2025-07-30 | 3.163.24.84 (ClassC) |
| 2025-08-27 | 99.84.66.89 (ClassC) |
| 2025-11-21 | 3.163.24.81 (ClassC) |
| 2026-01-03 | 3.163.24.128 (ClassC) |
| 2026-01-09 | 3.163.24.60 (ClassC) |
| Date | Domain | IP |
| www3.kobunsha.com | 2024-10-05 | 18.161.6.125 |
| special.kobunsha.com | 2023-11-29 | 204.246.191.62 |
| data.en.kobunsha.com | 2024-10-26 | 108.138.94.49 |
| recruit.kobunsha.com | 2024-11-11 | 99.84.66.125 |
| www.kobunsha.com | 2023-11-01 | 3.163.24.89 |