| Date | IP Address |
| 2019-09-20 | 104.114.5.29 (ClassC) |
| 2020-06-10 | 23.197.26.69 (ClassC) |
| 2021-05-19 | 23.7.103.127 (ClassC) |
| 2024-04-12 | 23.37.209.91 (ClassC) |
| 2024-09-06 | 23.196.150.45 (ClassC) |
| 2024-09-13 | 23.196.200.60 (ClassC) |
| 2025-05-16 | 2.19.128.64 (ClassC) |
| 2025-07-07 | 23.37.209.81 (ClassC) |
| 2026-01-18 | 23.6.177.167 (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 | 2025-01-01 | 23.44.254.179 |