| Date | IP Address |
| 2020-02-13 | 13.226.139.49 (ClassC) |
| 2021-01-19 | 52.84.53.16 (ClassC) |
| 2024-07-02 | 99.84.66.96 (ClassC) |
| 2024-07-20 | 99.84.66.120 (ClassC) |
| 2025-01-22 | 18.238.217.62 (ClassC) |
| Date | Domain | IP |
| ns3.kose.co.jp | 2025-01-11 | 113.32.177.85 |
| cfn.kose.co.jp | 2024-07-02 | 99.84.66.96 |
| maison.kose.co.jp | 2024-11-21 | 99.84.66.17 |
| www.kose.co.jp | 2023-11-01 | 54.199.41.174 |