| Date | IP Address |
| 2021-01-14 | 13.226.18.97 (ClassC) |
| 2021-01-14 | 13.226.18.114 (ClassC) |
| 2021-01-14 | 13.226.18.77 (ClassC) |
| 2021-01-14 | 13.226.18.83 (ClassC) |
| 2021-01-19 | 52.84.53.101 (ClassC) |
| 2021-01-19 | 13.226.18.19 (ClassC) |
| 2021-01-19 | 52.84.53.112 (ClassC) |
| 2021-01-19 | 52.84.53.54 (ClassC) |
| 2024-03-01 | 13.227.74.17 (ClassC) |
| 2024-08-01 | 18.239.199.44 (ClassC) |
| 2024-08-30 | 18.238.238.102 (ClassC) |
| 2025-02-04 | 18.238.238.103 (ClassC) |
| 2025-04-20 | 18.238.238.108 (ClassC) |
| 2025-05-10 | 3.163.24.119 (ClassC) |
| 2025-08-24 | 3.163.24.33 (ClassC) |
| 2025-09-06 | 3.163.24.125 (ClassC) |
| 2025-09-21 | 3.163.24.27 (ClassC) |
| Date | Domain | IP |
| app.y.izumi.jp | 2024-09-30 | 3.163.24.2 |
| api.app.y.izumi.jp | 2024-03-01 | 13.227.74.17 |