| Date | IP Address |
| 2024-10-11 | 18.178.254.167 (ClassC) |
| 2024-12-22 | 35.76.15.221 (ClassC) |
| 2025-02-27 | 13.230.205.148 (ClassC) |
| 2025-03-03 | 54.250.2.94 (ClassC) |
| 2025-03-27 | 57.182.133.158 (ClassC) |
| Date | Domain | IP |
| web.tac-school.co.jp | 2024-10-11 | 54.150.132.178 |
| ec.tac-school.co.jp | 2024-10-11 | 3.114.159.95 |
| bookstore.tac-school.co.jp | 2024-10-11 | 3.115.151.73 |
| search.tac-school.co.jp | 2025-03-04 | 203.216.194.146 |
| ebook.tac-school.co.jp | 2024-07-03 | 52.219.1.92 |
| portal.tac-school.co.jp | 2024-10-11 | 18.180.137.242 |
| ooqbml.tac-school.co.jp | 2025-03-04 | 74.119.118.149 |
| m.tac-school.co.jp | 2024-10-11 | 18.178.254.167 |
| shuppan.tac-school.co.jp | 2024-10-11 | 3.115.55.3 |
| ws.tac-school.co.jp | 2024-10-11 | 18.179.195.126 |
| wbt.tac-school.co.jp | 2025-03-02 | 202.215.243.210 |
| rsv.tac-school.co.jp | 2025-03-05 | 210.250.33.180 |
| www.tac-school.co.jp | 2024-02-13 | 3.163.24.43 |