| Date | IP Address |
| 2025-01-03 | 104.18.36.242 (ClassC) |
| Date | Domain | IP |
| ns1.fdlp.gov | 2024-11-26 | 162.159.4.127 |
| ns2.fdlp.gov | 2024-10-20 | 162.159.5.58 |
| beta.fdlp.gov | 2024-11-24 | 104.18.36.242 |
| www.beta.fdlp.gov | 2025-01-03 | 104.18.36.242 |
| stats-stage.fdlp.gov | 2024-09-28 | 104.16.15.241 |
| stats-devel.fdlp.gov | 2024-09-28 | 104.16.15.241 |
| purl.fdlp.gov | 2024-12-17 | 146.20.24.125 |
| libguides.fdlp.gov | 2024-12-06 | 104.17.10.189 |
| purlreferrals.fdlp.gov | 2024-12-17 | 146.20.24.125 |
| stats.fdlp.gov | 2024-09-28 | 104.16.15.241 |
| purlreports.fdlp.gov | 2024-12-17 | 146.20.24.125 |
| permanent.fdlp.gov | 2024-12-06 | 104.17.11.189 |
| www.fdlp.gov | 2024-12-17 | 104.18.178.40 |