| Date | IP Address |
| 2024-11-25 | 99.84.66.34 (ClassC) |
| 2025-08-30 | 99.84.66.119 (ClassC) |
| 2026-01-14 | 3.175.34.57 (ClassC) |
| Date | Domain | IP |
| dev-nsd.freeserial.cmoa.jp | 2024-09-13 | 99.84.66.85 |
| unittest.dev-nsd.freeserial.cmoa.jp | 2024-07-05 | 18.161.6.7 |
| stg.freeserial.cmoa.jp | 2024-11-25 | 99.84.66.34 |
| app1.dev-sol.freeserial.cmoa.jp | 2023-12-27 | 3.163.24.109 |