| Date | IP Address |
| 2015-11-20 | 216.137.39.212 (ClassC) |
| 2016-01-15 | 54.230.90.74 (ClassC) |
| 2016-01-18 | 52.84.7.63 (ClassC) |
| 2016-02-12 | 54.230.90.88 (ClassC) |
| 2016-03-06 | 52.84.14.39 (ClassC) |
| 2016-06-12 | 52.84.14.238 (ClassC) |
| 2016-11-23 | 52.84.66.43 (ClassC) |
| 2025-10-12 | 3.163.24.31 (ClassC) |
| 2025-12-02 | 3.163.24.26 (ClassC) |
| 2025-12-23 | 3.163.24.120 (ClassC) |
| 2026-02-02 | 3.163.24.60 (ClassC) |
| Date | Domain | IP |
| cm.nroc.org | 2025-10-13 | 44.238.109.198 |
| content.nroc.org | 2019-05-19 | 13.224.29.33 |
| noaacontent.nroc.org | 2025-03-04 | 18.238.238.76 |
| khancontent.nroc.org | 2025-10-12 | 3.163.24.31 |
| aopscontent.nroc.org | 2024-02-04 | 204.246.191.38 |
| www.nroc.org | 2023-11-01 | 44.238.105.202 |