| Date | IP Address |
| 2020-11-09 | 65.8.233.16 (ClassC) |
| 2020-11-09 | 65.8.233.117 (ClassC) |
| 2020-11-09 | 65.8.233.14 (ClassC) |
| 2021-01-19 | 52.84.22.86 (ClassC) |
| 2021-02-02 | 13.249.21.117 (ClassC) |
| 2021-04-14 | 143.204.165.18 (ClassC) |
| 2021-04-27 | 143.204.154.82 (ClassC) |
| 2021-05-11 | 13.226.178.120 (ClassC) |
| 2024-09-23 | 18.161.6.109 (ClassC) |
| 2024-11-05 | 18.161.6.110 (ClassC) |
| Date | Domain | IP |
| ls1.koikeya.co.jp | 2023-11-24 | 3.163.24.19 |
| shop.koikeya.co.jp | 2024-09-23 | 18.161.6.109 |
| www.koikeya.co.jp | 2023-11-25 | 133.242.113.251 |