| Date | IP Address |
| 2018-12-21 | 99.84.254.35 (ClassC) |
| 2018-12-21 | 52.84.141.221 (ClassC) |
| 2018-12-21 | 99.84.254.92 (ClassC) |
| 2018-12-21 | 99.84.254.12 (ClassC) |
| 2019-03-23 | 13.249.87.43 (ClassC) |
| 2019-03-23 | 13.249.87.129 (ClassC) |
| 2019-03-23 | 13.249.87.4 (ClassC) |
| 2019-11-14 | 13.226.15.2 (ClassC) |
| 2019-11-14 | 13.227.45.44 (ClassC) |
| 2019-11-14 | 13.227.45.90 (ClassC) |
| 2020-10-16 | 99.84.251.54 (ClassC) |
| 2020-10-16 | 99.84.251.91 (ClassC) |
| 2021-08-12 | 99.86.35.30 (ClassC) |
| 2023-12-10 | 104.18.0.88 (ClassC) |
| 2024-05-17 | 104.18.1.88 (ClassC) |
| 2025-08-23 | 104.18.4.247 (ClassC) |
| 2026-02-07 | 104.18.5.247 (ClassC) |
| Date | Domain | IP |
| staging.api.yellowcard.io | 2025-12-23 | 104.18.4.247 |
| mtls.staging.api.yellowcard.io | 2025-12-23 | 104.18.5.247 |
| mtls.sandbox.api.yellowcard.io | 2025-09-13 | 104.18.4.247 |