| Date | IP Address |
| 2023-08-20 | 65.8.49.32 (ClassC) |
| 2023-08-20 | 65.8.49.95 (ClassC) |
| 2023-09-08 | 52.85.247.126 (ClassC) |
| 2023-10-22 | 54.230.18.80 (ClassC) |
| 2024-11-27 | 18.238.136.83 (ClassC) |
| 2025-01-22 | 204.246.191.16 (ClassC) |
| 2025-05-27 | 3.163.165.93 (ClassC) |
| 2025-09-06 | 99.84.66.89 (ClassC) |
| 2025-09-19 | 204.246.191.85 (ClassC) |
| 2025-10-28 | 18.161.6.13 (ClassC) |
| 2026-01-17 | 18.161.6.25 (ClassC) |
| 2026-02-24 | 18.161.6.70 (ClassC) |
| Date | Domain | IP |
| update.kozo.co.jp | 2024-11-12 | 204.246.191.45 |
| 40th.kozo.co.jp | 2025-01-22 | 204.246.191.16 |
| help.kozo.co.jp | 2024-12-21 | 52.219.199.83 |
| group.kozo.co.jp | 2024-06-10 | 54.248.98.184 |
| support.kozo.co.jp | 2024-10-24 | 54.150.85.127 |
| www.kozo.co.jp | 2024-11-30 | 3.163.158.108 |