| Date | IP Address |
| 2015-11-21 | 141.211.144.77 (ClassC) |
| 2016-12-01 | 141.211.3.7 (ClassC) |
| 2019-12-01 | 141.211.243.121 (ClassC) |
| 2022-12-01 | 141.211.243.120 (ClassC) |
| 2023-07-16 | 3.130.223.75 (ClassC) |
| 2025-04-01 | 3.140.42.194 (ClassC) |
| 2025-08-28 | 3.139.242.0 (ClassC) |
| Date | Domain | IP |
| www.olli-umich.org | 2025-06-21 | 3.140.42.194 |