| Date | IP Address |
| 2025-04-09 | 3.164.92.60 (ClassC) |
| 2025-10-15 | 18.161.6.25 (ClassC) |
| 2025-12-11 | 18.161.6.109 (ClassC) |
| Date | Domain | IP |
| ns1.nsf.gov | 2025-10-24 | 128.150.2.55 |
| ns2.nsf.gov | 2025-11-28 | 128.150.2.56 |
| www-legacy-f5.nsf.gov | 2025-11-28 | 128.150.221.244 |
| iucrc.nsf.gov | 2024-02-13 | 18.65.229.93 |
| seedfund.nsf.gov | 2025-03-20 | 3.163.165.87 |
| dasserviceportalnonprod.nsf.gov | 2024-12-26 | 52.205.89.16 |
| search.nsf.gov | 2024-11-25 | 107.23.146.145 |
| dasserviceportal.nsf.gov | 2025-01-13 | 44.219.124.169 |
| paesmem.nsf.gov | 2024-06-03 | 54.91.48.180 |
| demo.paesmem.nsf.gov | 2024-06-03 | 44.199.2.37 |
| edocs.epscor.nsf.gov | 2024-06-03 | 3.220.32.222 |
| demo-edocs.epscor.nsf.gov | 2024-04-12 | 3.224.71.117 |
| nsf-gov-resources.nsf.gov | 2024-09-15 | 204.246.191.60 |
| beta-resources.test.nsf.gov | 2025-10-15 | 18.161.6.25 |
| demo.paemst.nsf.gov | 2024-02-21 | 52.3.27.222 |
| new.nsf.gov | 2025-11-12 | 128.150.221.241 |
| www.nsf.gov | 2024-12-24 | 128.150.221.106 |