| Date | IP Address |
| 2020-07-26 | 23.219.230.247 (ClassC) |
| 2023-08-25 | 104.103.220.245 (ClassC) |
| 2025-01-13 | 23.223.221.52 (ClassC) |
| 2025-05-09 | 23.202.199.68 (ClassC) |
| 2026-01-21 | 23.203.210.146 (ClassC) |
| Date | Domain | IP |
| bridge.mbb.mc-j.co.jp | 2024-02-24 | 18.179.242.222 |
| daiwahouse.mc-j.co.jp | 2024-12-27 | 204.246.191.122 |
| sekisuihouse.mc-j.co.jp | 2025-10-29 | 3.175.34.118 |
| sumirin.mc-j.co.jp | 2026-01-20 | 3.175.34.50 |
| ap.mc-j.co.jp | 2024-12-26 | 3.163.158.128 |
| bridge.mbb.dev.mc-j.co.jp | 2025-03-05 | 35.75.227.185 |
| ap.dev.mc-j.co.jp | 2024-07-07 | 18.161.6.69 |
| mcjs.dev.mc-j.co.jp | 2024-12-24 | 3.165.160.126 |
| www.mc-j.co.jp | 2024-11-24 | 18.161.6.50 |
| my.mc-j.co.jp | 2023-08-25 | 104.103.220.245 |