| Date | IP Address |
| 2020-06-09 | 23.201.77.16 (ClassC) |
| 2024-01-10 | 23.49.137.133 (ClassC) |
| 2024-11-25 | 23.44.254.179 (ClassC) |
| 2025-04-25 | 23.6.110.165 (ClassC) |
| Date | Domain | IP |
| www1.mastercard.com.tw | 2023-08-25 | 23.196.194.63 |
| stage.mastercard.com.tw | 2023-08-25 | 23.209.31.61 |
| mtf.mastercard.com.tw | 2023-08-25 | 23.209.29.157 |
| www.mastercard.com.tw | 2024-11-25 | 23.44.254.179 |