| Property | Value |
| Organization | NIPPON KAIJI KYOKAI |
| NameServer | nkdns2.classnk.or.jp |
| Created | 1994-07-20 00:00:00 |
| Changed | 2015-07-31 16:09:36 |
| Date | IP Address |
| 2020-11-24 | 23.67.70.11 (ClassC) |
| 2022-01-13 | 23.197.186.211 (ClassC) |
| 2023-08-18 | 96.7.159.160 (ClassC) |
| 2023-11-02 | 104.75.103.128 (ClassC) |
| 2024-11-10 | 104.92.249.47 (ClassC) |
| 2024-11-20 | 104.89.231.10 (ClassC) |
| 2025-02-21 | 184.31.66.200 (ClassC) |
| 2025-05-18 | 23.202.202.196 (ClassC) |
| 2025-07-13 | 23.54.39.181 (ClassC) |
| 2025-08-02 | 23.213.21.32 (ClassC) |
| Date | Domain | IP |
| nkdns2.classnk.or.jp | 2025-06-13 | 202.219.44.4 |
| hullcare.classnk.or.jp | 2024-12-06 | 104.92.249.47 |
| portal.classnk.or.jp | 2024-11-11 | 104.92.249.47 |
| e-application.classnk.or.jp | 2024-11-10 | 104.68.118.9 |
| nkships.classnk.or.jp | 2024-11-10 | 23.202.195.190 |
| www.classnk.or.jp | 2023-08-18 | 96.7.159.160 |
| gateway.classnk.or.jp | 2024-11-11 | 202.219.44.10 |