| Date | IP Address |
| 2020-03-18 | 23.47.214.215 (ClassC) |
| 2023-08-25 | 104.112.191.213 (ClassC) |
| 2024-06-19 | 23.61.180.76 (ClassC) |
| 2024-09-15 | 23.44.251.140 (ClassC) |
| 2024-10-03 | 23.198.168.69 (ClassC) |
| 2024-11-25 | 184.24.206.183 (ClassC) |
| 2025-02-03 | 23.196.127.196 (ClassC) |
| 2025-09-07 | 23.37.222.214 (ClassC) |
| 2026-02-03 | 23.41.4.71 (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 | 2025-09-07 | 23.185.0.2 |