| Date | IP Address |
| 2022-07-05 | 52.219.172.44 (ClassC) |
| 2023-11-07 | 52.219.150.68 (ClassC) |
| 2024-08-20 | 52.219.136.6 (ClassC) |
| 2024-08-31 | 52.219.163.64 (ClassC) |
| 2024-12-24 | 52.219.8.168 (ClassC) |
| 2024-12-27 | 3.5.156.180 (ClassC) |
| 2025-01-10 | 3.5.154.29 (ClassC) |
| 2025-02-22 | 52.219.8.104 (ClassC) |
| 2025-03-08 | 3.5.154.225 (ClassC) |
| 2025-03-16 | 52.219.136.42 (ClassC) |
| 2025-04-06 | 3.5.159.1 (ClassC) |
| 2025-05-09 | 3.5.156.140 (ClassC) |
| 2025-05-18 | 3.5.154.121 (ClassC) |
| 2025-08-11 | 52.219.136.82 (ClassC) |
| 2025-09-02 | 3.5.159.213 (ClassC) |
| 2026-01-31 | 3.5.155.148 (ClassC) |
| 2026-02-10 | 52.219.199.104 (ClassC) |
| Date | Domain | IP |
| school-api.nihonvogue.co.jp | 2025-09-07 | 3.113.86.110 |
| book.nihonvogue.co.jp | 2025-07-16 | 210.149.143.232 |
| school.nihonvogue.co.jp | 2025-09-08 | 3.113.86.110 |
| room.nihonvogue.co.jp | 2024-08-20 | 52.219.136.6 |
| www.nihonvogue.co.jp | 2025-09-07 | 54.250.180.21 |