| Date | IP Address |
| 2024-11-26 | 210.148.218.121 (ClassC) |
| 2025-05-18 | 23.41.4.82 (ClassC) |
| 2025-12-16 | 23.41.4.90 (ClassC) |
| Date | Domain | IP |
| stg.nisshinfire.co.jp | 2024-11-26 | 210.148.218.18 |
| securesignon.nisshinfire.co.jp | 2025-05-05 | 92.122.12.158 |
| stg-securesignon.nisshinfire.co.jp | 2023-08-25 | 2.19.139.192 |
| accounts.nisshinfire.co.jp | 2023-08-25 | 23.196.199.182 |
| stg-accounts.nisshinfire.co.jp | 2023-08-25 | 2.19.139.192 |
| contract.nisshinfire.co.jp | 2025-09-07 | 23.41.4.82 |
| direct.nisshinfire.co.jp | 2023-08-25 | 23.74.130.246 |
| stg-direct.nisshinfire.co.jp | 2024-11-26 | 210.148.218.121 |
| www.nisshinfire.co.jp | 2025-01-20 | 23.38.191.171 |
| my.nisshinfire.co.jp | 2023-08-25 | 104.86.233.18 |