| Date | IP Address |
| 2023-08-26 | 104.86.241.41 (ClassC) |
| 2023-10-31 | 23.198.108.206 (ClassC) |
| 2024-08-12 | 104.86.91.97 (ClassC) |
| 2025-03-26 | 104.90.243.240 (ClassC) |
| Date | Domain | IP |
| www.uat.sumitclub.jp | 2024-11-25 | 27.121.4.203 |
| app-dev.sumitclub.jp | 2024-09-07 | 3.163.24.22 |
| www.sumitclub.jp | 2023-08-26 | 104.86.241.41 |