| Date | IP Address |
| 2020-11-02 | 13.249.39.208 (ClassC) |
| 2020-11-02 | 13.249.39.228 (ClassC) |
| 2020-11-03 | 13.227.41.109 (ClassC) |
| 2021-04-21 | 13.225.222.44 (ClassC) |
| 2024-11-19 | 18.161.6.99 (ClassC) |
| 2025-02-06 | 18.161.6.121 (ClassC) |
| 2025-04-12 | 18.161.6.116 (ClassC) |
| Date | Domain | IP |
| fs1.jgrants-portal.go.jp | 2025-01-21 | 3.163.165.23 |
| fs2-mig.jgrants-portal.go.jp | 2024-09-08 | 204.246.191.73 |
| auth.jgrants-portal.go.jp | 2024-07-22 | 104.18.19.191 |
| mnt-auth.jgrants-portal.go.jp | 2025-01-06 | 104.18.34.50 |
| fs1-test.jgrants-portal.go.jp | 2024-07-26 | 18.161.6.50 |
| fs2-test.jgrants-portal.go.jp | 2024-11-19 | 18.161.6.99 |
| fs1-dev.jgrants-portal.go.jp | 2024-02-16 | 3.163.24.113 |
| www.jgrants-portal.go.jp | 2024-07-22 | 35.73.95.10 |