| Date | IP Address |
| 2023-10-27 | 23.1.33.199 (ClassC) |
| 2023-12-08 | 23.1.33.12 (ClassC) |
| 2024-05-01 | 23.213.34.71 (ClassC) |
| 2024-08-18 | 104.96.163.149 (ClassC) |
| 2024-10-28 | 23.41.4.72 (ClassC) |
| 2024-12-17 | 23.41.4.74 (ClassC) |
| 2025-01-09 | 23.59.88.208 (ClassC) |
| 2025-08-04 | 23.41.4.75 (ClassC) |
| Date | Domain | IP |
| apiauth.kitagin.co.jp | 2025-07-08 | 58.138.163.151 |
| api.kitagin.co.jp | 2025-07-04 | 58.138.163.151 |
| apiauthtest.kitagin.co.jp | 2025-06-22 | 58.138.163.138 |
| www.kitagin.co.jp | 2023-04-10 | 104.119.188.72 |