| Date | IP Address |
| 2020-03-20 | 99.84.247.17 (ClassC) |
| 2021-09-03 | 99.84.173.117 (ClassC) |
| 2025-04-15 | 18.161.6.127 (ClassC) |
| 2025-09-30 | 18.161.6.84 (ClassC) |
| 2025-12-10 | 18.161.6.27 (ClassC) |
| Date | Domain | IP |
| cb.bunka.go.jp | 2024-04-26 | 3.163.24.92 |
| demo.macc.bunka.go.jp | 2024-11-24 | 54.92.55.201 |
| mediag.bunka.go.jp | 2025-10-26 | 3.114.154.116 |
| demo.mediag.bunka.go.jp | 2024-05-13 | 13.113.129.61 |
| japanculturalexpo.bunka.go.jp | 2025-04-15 | 18.161.6.127 |