| Date | IP Address |
| 2023-08-25 | 23.56.190.34 (ClassC) |
| 2024-02-21 | 23.209.29.157 (ClassC) |
| 2024-07-30 | 184.27.222.79 (ClassC) |
| 2024-09-12 | 23.202.207.93 (ClassC) |
| 2024-11-24 | 23.196.148.48 (ClassC) |
| 2024-12-27 | 23.196.197.67 (ClassC) |
| Date | Domain | IP |
| www1.mastercard.co.kr | 2023-08-25 | 23.214.100.11 |
| stage.mastercard.co.kr | 2024-04-12 | 23.37.209.91 |
| mtf.mastercard.co.kr | 2023-08-25 | 23.56.190.34 |
| www.mastercard.co.kr | 2024-09-13 | 23.198.111.155 |