| Date | IP Address |
| 2017-10-05 | 54.225.243.84 (ClassC) |
| 2018-09-09 | 50.19.231.206 (ClassC) |
| 2019-08-06 | 54.225.130.101 (ClassC) |
| 2020-12-11 | 52.22.68.253 (ClassC) |
| 2021-02-17 | 54.174.214.248 (ClassC) |
| 2021-05-26 | 54.82.179.120 (ClassC) |
| 2021-11-12 | 52.1.96.194 (ClassC) |
| 2021-12-23 | 34.226.107.114 (ClassC) |
| 2022-05-25 | 54.84.174.12 (ClassC) |
| 2026-02-27 | 104.196.180.214 (ClassC) |
| Date | Domain | IP |
| www.nhpirg.org | 2025-11-26 | 104.196.180.214 |