| Date | IP Address |
| 2019-06-06 | 23.4.3.142 (ClassC) |
| 2019-07-02 | 96.17.118.120 (ClassC) |
| 2020-03-21 | 104.113.27.182 (ClassC) |
| 2023-08-26 | 104.86.241.41 (ClassC) |
| 2023-10-31 | 23.198.108.206 (ClassC) |
| 2024-08-12 | 104.86.91.97 (ClassC) |
| 2025-04-15 | 104.90.243.240 (ClassC) |
| 2026-02-24 | 23.222.153.10 (ClassC) |
| Date | Domain | IP |
| www.uat.sumitclub.jp | 2025-07-24 | 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 |