| Date | IP Address |
| 2019-08-24 | 52.203.132.102 (ClassC) |
| 2025-09-21 | 56.136.63.13 (ClassC) |
| Date | Domain | IP |
| inpsccmdmzmp01.nps.gov | 2025-09-12 | 4.156.14.56 |
| home.nps.gov | 2025-06-25 | 34.232.5.230 |
| secure.nps.gov | 2025-08-17 | 165.83.19.13 |
| npssearch.nps.gov | 2024-11-25 | 54.86.75.48 |
| developer.nps.gov | 2025-09-21 | 56.136.63.13 |
| stats.nps.gov | 2014-03-04 | 66.235.138.225 |
| www.nps.gov | 2014-10-16 | 90.84.60.145 |