| Date | IP Address |
| 2023-08-24 | 52.85.151.32 (ClassC) |
| 2024-10-03 | 18.161.6.6 (ClassC) |
| 2025-04-13 | 18.161.6.7 (ClassC) |
| 2025-05-28 | 18.238.238.79 (ClassC) |
| Date | Domain | IP |
| usnjpr1ns01.ithaka.org | 2014-11-28 | 69.167.69.46 |
| info.ithaka.org | 2024-10-03 | 18.161.6.6 |
| sr.ithaka.org | 2024-10-03 | 151.101.0.152 |
| surveys.ithaka.org | 2023-08-25 | 104.112.191.213 |
| www.ithaka.org | 2025-05-22 | 23.185.0.2 |