| Date | IP Address |
| 2023-08-26 | 35.161.131.222 (ClassC) |
| 2024-01-27 | 52.43.203.9 (ClassC) |
| 2024-04-21 | 44.238.14.231 (ClassC) |
| 2024-05-06 | 44.236.158.234 (ClassC) |
| 2024-05-17 | 44.239.110.75 (ClassC) |
| 2024-06-06 | 44.231.140.126 (ClassC) |
| 2024-06-15 | 35.164.58.121 (ClassC) |
| 2024-07-02 | 52.89.183.136 (ClassC) |
| 2024-07-22 | 44.240.93.164 (ClassC) |
| 2024-08-04 | 35.82.239.9 (ClassC) |
| 2024-08-11 | 52.27.158.11 (ClassC) |
| 2024-09-04 | 52.38.102.94 (ClassC) |
| 2024-09-22 | 52.37.16.222 (ClassC) |
| 2024-10-02 | 44.229.62.211 (ClassC) |
| 2024-11-09 | 52.26.113.244 (ClassC) |
| 2024-11-21 | 52.38.47.101 (ClassC) |
| 2025-01-12 | 52.11.217.236 (ClassC) |
| 2025-01-30 | 54.218.11.20 (ClassC) |
| 2025-02-25 | 52.88.224.61 (ClassC) |
| 2025-03-08 | 18.236.5.179 (ClassC) |
| 2025-03-24 | 44.235.109.95 (ClassC) |
| 2025-05-14 | 52.38.9.219 (ClassC) |
| 2025-08-20 | 35.161.245.214 (ClassC) |
| 2025-08-29 | 52.27.139.97 (ClassC) |
| 2025-09-11 | 35.162.216.29 (ClassC) |
| 2025-10-30 | 54.69.140.41 (ClassC) |
| 2026-02-17 | 44.227.164.233 (ClassC) |
| Date | Domain | IP |
| portal-qa2.gopennymac.com | 2025-05-04 | 204.246.191.19 |
| portal-stg.gopennymac.com | 2025-01-23 | 18.65.229.70 |
| portal.gopennymac.com | 2024-06-15 | 3.163.24.114 |
| portal-dev.gopennymac.com | 2024-12-18 | 52.84.162.26 |
| www.gopennymac.com | 2024-06-06 | 44.231.140.126 |