| Date | IP Address |
| 2023-08-26 | 54.92.21.140 (ClassC) |
| 2024-04-22 | 35.79.9.74 (ClassC) |
| 2024-05-24 | 54.250.194.227 (ClassC) |
| 2024-06-17 | 13.112.242.59 (ClassC) |
| 2024-09-02 | 52.68.71.254 (ClassC) |
| 2024-09-13 | 54.64.149.213 (ClassC) |
| 2024-09-22 | 35.73.118.116 (ClassC) |
| 2024-10-05 | 52.68.45.200 (ClassC) |
| 2024-10-09 | 54.150.175.253 (ClassC) |
| 2024-11-03 | 18.179.99.157 (ClassC) |
| 2024-11-07 | 54.150.224.7 (ClassC) |
| Date | Domain | IP |
| office.okan.jp | 2024-10-05 | 3.163.24.98 |
| docs.okan.jp | 2024-11-06 | 3.163.24.17 |