| Date | IP Address |
| 2023-07-14 | 35.77.143.255 (ClassC) |
| 2023-07-14 | 54.199.15.144 (ClassC) |
| 2023-09-19 | 35.73.49.144 (ClassC) |
| 2023-09-19 | 18.177.64.228 (ClassC) |
| 2023-11-02 | 18.178.158.21 (ClassC) |
| 2023-11-02 | 52.193.210.68 (ClassC) |
| 2023-12-26 | 52.197.41.208 (ClassC) |
| 2023-12-26 | 52.199.221.220 (ClassC) |
| 2024-01-08 | 52.68.226.203 (ClassC) |
| 2024-05-21 | 18.179.81.218 (ClassC) |
| 2024-05-21 | 3.114.208.251 (ClassC) |
| 2024-08-20 | 13.113.208.98 (ClassC) |
| 2024-08-20 | 18.178.127.238 (ClassC) |
| 2024-10-01 | 52.197.229.227 (ClassC) |
| 2024-10-01 | 54.178.108.63 (ClassC) |
| 2024-11-30 | 54.65.191.150 (ClassC) |
| 2024-11-30 | 54.64.39.155 (ClassC) |
| 2025-04-15 | 54.199.212.28 (ClassC) |
| 2025-04-15 | 3.113.205.191 (ClassC) |
| 2025-06-06 | 18.176.238.187 (ClassC) |
| 2025-06-06 | 3.113.141.155 (ClassC) |
| 2025-06-20 | 52.199.244.102 (ClassC) |
| 2025-08-19 | 54.248.110.73 (ClassC) |
| 2025-08-26 | 54.65.245.144 (ClassC) |
| 2025-08-26 | 54.199.85.13 (ClassC) |
| 2025-09-03 | 52.69.107.149 (ClassC) |
| 2025-10-17 | 52.193.245.221 (ClassC) |
| 2025-10-17 | 52.192.252.92 (ClassC) |
| 2025-12-20 | 35.75.126.161 (ClassC) |
| 2026-01-19 | 57.180.139.150 (ClassC) |
| Date | Domain | IP |
| students.fun.ac.jp | 2025-06-20 | 52.199.244.102 |
| parent.fun.ac.jp | 2025-06-20 | 52.199.244.102 |
| kyomu.fun.ac.jp | 2025-06-20 | 52.199.244.102 |
| www.fun.ac.jp | 2024-08-17 | 3.163.158.107 |