| Date | IP Address |
| 2018-05-30 | 52.7.6.113 (ClassC) |
| 2025-10-30 | 34.234.222.25 (ClassC) |
| 2026-01-03 | 54.242.96.228 (ClassC) |
| Date | Domain | IP |
| oga.pcusa.org | 2024-08-21 | 54.157.113.177 |
| api.clc.pcusa.org | 2026-01-02 | 54.84.105.125 |
| p4m.pcusa.org | 2024-11-24 | 3.229.227.32 |
| educator-certification.pcusa.org | 2024-11-25 | 18.209.239.221 |
| exams.pcusa.org | 2025-10-30 | 34.234.222.25 |
| www.pcusa.org | 2024-11-26 | 198.74.52.221 |