| Date | IP Address |
| 2019-02-22 | 3.86.125.157 (ClassC) |
| 2025-07-24 | 3.33.148.61 (ClassC) |
| 2025-09-25 | 35.71.131.46 (ClassC) |
| 2026-01-16 | 13.248.144.105 (ClassC) |
| Date | Domain | IP |
| bouldermath.cs2n.org | 2024-10-10 | 3.165.160.38 |
| curriculum.cs2n.org | 2015-03-23 | 54.231.17.68 |
| cmra-blocks.cs2n.org | 2025-01-11 | 18.161.6.71 |
| www.cs2n.org | 2025-07-24 | 3.33.148.61 |