| Date | IP Address |
| 2017-12-09 | 52.197.16.46 (ClassC) |
| 2024-10-11 | 54.150.132.178 (ClassC) |
| 2024-12-19 | 35.74.136.72 (ClassC) |
| 2025-01-23 | 18.182.86.213 (ClassC) |
| 2025-03-04 | 52.197.237.224 (ClassC) |
| 2025-04-02 | 54.249.200.104 (ClassC) |
| 2025-05-01 | 18.181.22.117 (ClassC) |
| 2025-09-08 | 18.181.31.81 (ClassC) |
| 2025-09-13 | 3.115.40.32 (ClassC) |
| 2025-11-08 | 18.179.216.53 (ClassC) |
| 2025-11-23 | 57.180.218.73 (ClassC) |
| 2026-01-22 | 3.115.26.252 (ClassC) |
| 2026-02-15 | 52.197.188.13 (ClassC) |
| Date | Domain | IP |
| bookstore2.tac-school.co.jp | 2025-09-03 | 18.176.154.88 |
| portal2.tac-school.co.jp | 2025-10-29 | 52.68.72.61 |
| 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 | 2025-11-15 | 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 | 2025-09-08 | 74.119.118.149 |
| m.tac-school.co.jp | 2024-10-11 | 18.178.254.167 |
| program.tac-school.co.jp | 2025-12-19 | 35.73.112.228 |
| 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 | 2025-09-15 | 202.215.243.210 |
| rsv.tac-school.co.jp | 2025-12-30 | 210.250.33.180 |
| www.tac-school.co.jp | 2024-02-13 | 3.163.24.43 |