| Date | IP Address |
| 2021-02-18 | 3.82.67.122 (ClassC) |
| 2025-05-21 | 54.210.187.201 (ClassC) |
| 2025-06-07 | 34.238.32.7 (ClassC) |
| 2025-07-02 | 54.83.236.196 (ClassC) |
| 2025-09-07 | 54.88.77.69 (ClassC) |
| 2025-10-01 | 3.213.33.209 (ClassC) |
| 2026-03-03 | 98.94.251.23 (ClassC) |
| Date | Domain | IP |
| current.phi.prospector.optum.com | 2025-03-26 | 34.192.152.172 |
| www.phi.prospector.optum.com | 2024-10-29 | 52.205.232.127 |
| current.nophi.prospector.optum.com | 2025-05-22 | 54.210.187.201 |
| www.nophi.prospector.optum.com | 2025-05-21 | 54.210.187.201 |