| Date | IP Address |
| 2020-10-02 | 52.197.106.203 (ClassC) |
| 2021-09-03 | 18.179.241.86 (ClassC) |
| 2025-09-27 | 52.197.130.184 (ClassC) |
| 2025-10-14 | 52.195.85.49 (ClassC) |
| 2026-03-05 | 54.65.79.158 (ClassC) |
| Date | Domain | IP |
| db.dev.kenkey.jp | 2025-06-02 | 54.92.106.196 |
| api.dev.kenkey.jp | 2025-09-27 | 52.197.130.184 |
| biglemon.dev.kenkey.jp | 2025-06-02 | 54.92.106.196 |
| test.dev.kenkey.jp | 2025-06-02 | 3.5.158.81 |