| Date | IP Address |
| 2025-09-20 | 18.178.201.12 (ClassC) |
| Date | Domain | IP |
| rakuraku-m.ist-software.co.jp | 2025-09-12 | 133.186.35.64 |
| pdf-read.its-kikaku.ist-software.co.jp | 2025-09-20 | 18.178.201.12 |
| score-mate.its-kikaku.ist-software.co.jp | 2025-07-16 | 3.113.212.126 |
| dify.its-kikaku.ist-software.co.jp | 2024-11-11 | 54.248.173.189 |
| www.ist-software.co.jp | 2025-03-31 | 210.237.130.143 |