| Date | IP Address |
| 2019-04-14 | 23.219.36.160 (ClassC) |
| 2019-04-14 | 23.43.164.98 (ClassC) |
| 2019-09-23 | 23.56.175.152 (ClassC) |
| 2020-03-30 | 165.254.94.236 (ClassC) |
| 2020-04-07 | 23.56.168.211 (ClassC) |
| 2020-04-22 | 23.56.175.10 (ClassC) |
| 2020-06-17 | 23.53.127.98 (ClassC) |
| 2020-06-25 | 184.51.3.217 (ClassC) |
| 2020-11-18 | 2.19.195.75 (ClassC) |
| 2021-03-25 | 23.55.104.56 (ClassC) |
| 2024-05-25 | 23.46.17.51 (ClassC) |
| 2024-07-07 | 104.70.127.23 (ClassC) |
| 2024-08-11 | 23.46.17.16 (ClassC) |
| 2024-11-17 | 23.54.19.178 (ClassC) |
| 2024-12-23 | 23.46.228.164 (ClassC) |
| 2025-03-16 | 23.46.228.175 (ClassC) |
| 2025-04-15 | 23.55.111.146 (ClassC) |
| 2025-08-04 | 23.216.147.196 (ClassC) |
| Date | Domain | IP |
| www2.gakujo.ne.jp | 2024-06-03 | 3.163.165.7 |
| staging.www2.gakujo.ne.jp | 2025-04-04 | 99.84.66.91 |
| img.gakujo.ne.jp | 2024-05-25 | 23.46.17.51 |
| staging.gakujo.ne.jp | 2024-07-28 | 23.46.17.20 |
| asahi.gakujo.ne.jp | 2024-11-19 | 46.51.244.145 |
| www.gakujo.ne.jp | 2023-07-19 | 23.53.34.56 |
| company.gakujo.ne.jp | 2024-11-24 | 54.65.119.130 |