| Date | IP Address |
| 2022-10-24 | 13.115.172.87 (ClassC) |
| 2023-08-27 | 52.198.150.236 (ClassC) |
| 2023-11-01 | 13.114.72.95 (ClassC) |
| 2023-12-24 | 52.69.64.58 (ClassC) |
| 2024-05-01 | 52.198.107.237 (ClassC) |
| 2024-05-13 | 52.196.0.98 (ClassC) |
| 2024-07-27 | 54.65.3.28 (ClassC) |
| 2024-08-13 | 13.112.229.79 (ClassC) |
| 2024-09-14 | 57.180.74.79 (ClassC) |
| 2024-10-14 | 35.79.38.154 (ClassC) |
| 2024-10-25 | 54.249.75.157 (ClassC) |
| 2024-11-02 | 54.178.128.103 (ClassC) |
| 2024-11-29 | 54.65.46.29 (ClassC) |
| 2025-01-01 | 52.197.198.203 (ClassC) |
| 2025-01-30 | 54.178.20.108 (ClassC) |
| 2025-03-23 | 52.197.227.0 (ClassC) |
| 2025-05-11 | 52.194.25.124 (ClassC) |
| 2025-07-04 | 35.78.110.7 (ClassC) |
| 2025-07-22 | 52.192.24.78 (ClassC) |
| 2025-08-18 | 13.112.172.71 (ClassC) |
| 2025-09-07 | 13.114.4.201 (ClassC) |
| 2026-02-22 | 52.192.211.67 (ClassC) |
| Date | Domain | IP |
| www.dev.kobetsu.co.jp | 2024-05-13 | 99.84.66.45 |
| www.kobetsu.co.jp | 2025-09-07 | 3.175.34.59 |