| Date | IP Address |
| 2024-07-09 | 34.213.13.205 (ClassC) |
| 2025-09-13 | 44.240.134.182 (ClassC) |
| 2025-10-13 | 54.200.175.96 (ClassC) |
| 2025-10-30 | 52.35.40.119 (ClassC) |
| 2025-12-30 | 52.41.49.110 (ClassC) |
| 2026-01-23 | 52.25.242.61 (ClassC) |
| Date | Domain | IP |
| 2014.usopen.org | 2014-09-05 | 63.85.36.26 |
| bracketchallenge.usopen.org | 2014-08-30 | 54.225.214.208 |
| m.email.usopen.org | 2025-09-13 | 44.240.134.182 |
| metrics.usopen.org | 2024-04-10 | 63.140.37.126 |
| www.usopen.org | 2014-09-07 | 23.62.236.18 |
| hospitality.usopen.org | 2025-12-30 | 18.161.6.126 |