| Date | IP Address |
| 2024-08-09 | 118.155.214.68 (ClassC) |
| 2026-02-12 | 103.141.96.43 (ClassC) |
| Date | Domain | IP |
| mail.kantomedicalservice.co.jp | 2024-07-12 | 118.155.214.68 |
| ftp.kantomedicalservice.co.jp | 2025-11-17 | 103.141.96.43 |
| ns.kantomedicalservice.co.jp | 2024-08-09 | 118.155.214.68 |
| www.kantomedicalservice.co.jp | 2025-08-16 | 103.141.96.43 |