| Date | IP Address |
| 2024-12-05 | 34.198.72.162 (ClassC) |
| 2025-10-31 | 54.163.123.134 (ClassC) |
| 2025-11-20 | 18.210.74.248 (ClassC) |
| Date | Domain | IP |
| beta.fec.gov | 2019-05-14 | 13.32.255.202 |
| api.open.fec.gov | 2025-10-25 | 56.136.57.251 |
| transition.fec.gov | 2024-08-02 | 3.163.24.38 |
| docquery.prod.efo.fec.gov | 2025-07-28 | 18.161.6.15 |
| docquery.stage.efo.fec.gov | 2024-11-24 | 99.84.66.85 |
| docquery.dev.efo.fec.gov | 2024-10-05 | 18.161.6.70 |
| webforms.fec.gov | 2025-10-31 | 54.163.123.134 |
| efilingapps.fec.gov | 2025-10-30 | 3.212.62.147 |
| dev.fec.gov | 2025-01-14 | 18.161.6.82 |
| www.fec.gov | 2019-08-08 | 13.224.215.3 |