| Date | IP Address |
| 2025-02-27 | 40.126.26.19 (ClassC) |
| 2025-06-21 | 20.190.154.141 (ClassC) |
| 2025-07-16 | 40.126.26.130 (ClassC) |
| 2025-08-11 | 40.126.26.131 (ClassC) |
| 2025-09-02 | 40.126.26.18 (ClassC) |
| 2025-09-10 | 20.190.154.140 (ClassC) |
| 2026-01-25 | 40.126.26.17 (ClassC) |
| Date | Domain | IP |
| origin-m81150.mfa.co.jp | 2026-01-22 | 150.60.216.36 |
| mail.mfa.co.jp | 2025-07-16 | 150.60.216.34 |
| enterpriseregistration.mfa.co.jp | 2025-02-27 | 40.126.26.19 |
| pop.mfa.co.jp | 2026-01-22 | 150.60.216.34 |
| ftp.mfa.co.jp | 2023-08-26 | 23.193.76.9 |
| autodiscover.mfa.co.jp | 2025-02-26 | 52.96.121.56 |
| enterpriseenrollment.mfa.co.jp | 2025-03-16 | 20.189.172.161 |
| www.mfa.co.jp | 2023-08-26 | 23.193.76.9 |