| Date | IP Address |
| 2019-11-27 | 23.201.77.16 (ClassC) |
| 2022-10-17 | 104.78.125.192 (ClassC) |
| 2023-08-26 | 104.100.69.164 (ClassC) |
| 2023-10-25 | 104.86.250.234 (ClassC) |
| 2023-11-02 | 23.201.174.227 (ClassC) |
| 2024-02-21 | 23.198.155.200 (ClassC) |
| 2024-08-13 | 184.25.210.212 (ClassC) |
| 2024-09-09 | 23.222.147.172 (ClassC) |
| 2024-12-27 | 23.198.111.155 (ClassC) |
| 2025-03-01 | 23.5.254.177 (ClassC) |
| 2025-09-03 | 184.25.210.75 (ClassC) |
| 2025-09-21 | 23.44.254.179 (ClassC) |
| 2026-02-11 | 23.6.110.165 (ClassC) |
| Date | Domain | IP |
| www1.mastercard.co.jp | 2023-08-25 | 23.196.194.63 |
| stage.mastercard.co.jp | 2023-08-25 | 23.196.114.77 |
| mtf.mastercard.co.jp | 2024-04-19 | 23.202.207.93 |
| www.mastercard.co.jp | 2024-09-13 | 23.222.147.172 |