| Date | IP Address |
| 2014-03-23 | 199.85.19.10 (ClassC) |
| 2019-12-10 | 204.232.161.242 (ClassC) |
| 2021-02-03 | 104.26.2.173 (ClassC) |
| 2021-02-03 | 104.26.3.173 (ClassC) |
| 2021-02-03 | 172.67.73.78 (ClassC) |
| 2022-01-18 | 45.60.107.215 (ClassC) |
| 2022-01-18 | 45.60.62.215 (ClassC) |
| 2024-05-09 | 52.228.84.38 (ClassC) |
| 2024-10-26 | 141.193.213.10 (ClassC) |
| 2024-12-12 | 141.193.213.11 (ClassC) |
| 2025-08-19 | 141.193.213.20 (ClassC) |
| 2026-01-24 | 141.193.213.21 (ClassC) |
| Date | Domain | IP |
| undertakings.osler.com | 2025-05-23 | 52.237.17.47 |
| ns.osler.com | 2025-03-13 | 199.85.19.2 |
| www.osler.com | 2023-08-18 | 13.107.213.70 |