| Date | IP Address |
| 2022-02-03 | 23.79.240.3 (ClassC) |
| 2025-11-03 | 23.59.88.44 (ClassC) |
| Date | Domain | IP |
| dev.api2.penfed.org | 2025-01-15 | 23.46.228.177 |
| pfcuma-qa.penfed.org | 2025-09-14 | 23.216.147.203 |
| mail-content.dcc-mail-qa.penfed.org | 2025-01-16 | 54.87.11.7 |
| homeqa.penfed.org | 2024-06-27 | 23.46.17.14 |
| home.penfed.org | 2024-09-29 | 23.54.19.145 |
| www1.online.penfed.org | 2024-07-05 | 104.70.127.63 |
| pfcg.penfed.org | 2024-04-11 | 20.72.189.142 |
| blog.penfed.org | 2014-05-01 | 184.106.55.78 |
| dynatracesg.penfed.org | 2024-10-25 | 23.46.17.17 |
| commauth.penfed.org | 2024-02-18 | 104.96.163.210 |
| qacommauth.penfed.org | 2025-11-03 | 23.59.88.44 |
| devcommauth.penfed.org | 2024-08-23 | 23.46.228.168 |
| m.email.penfed.org | 2025-04-28 | 35.160.25.136 |
| t.email.penfed.org | 2025-05-08 | 44.235.16.198 |
| espanol.penfed.org | 2024-07-04 | 104.70.127.14 |
| loancenter.penfed.org | 2024-12-02 | 18.238.238.27 |
| pfcuma-pr.penfed.org | 2024-09-27 | 23.44.175.140 |
| careers.penfed.org | 2024-02-21 | 23.55.167.25 |
| www.penfed.org | 2024-06-12 | 23.46.17.23 |
| billpay.penfed.org | 2024-08-14 | 23.46.17.18 |
| giveaway.penfed.org | 2025-09-01 | 44.240.173.155 |
| sjourney.penfed.org | 2024-05-14 | 63.140.37.206 |