| Date | IP Address |
| 2021-07-26 | 54.192.101.111 (ClassC) |
| 2021-07-26 | 54.192.101.82 (ClassC) |
| 2021-07-26 | 54.192.101.90 (ClassC) |
| 2025-01-08 | 34.203.172.244 (ClassC) |
| 2025-01-12 | 34.224.186.26 (ClassC) |
| 2025-08-14 | 99.84.66.14 (ClassC) |
| 2026-01-15 | 3.169.173.64 (ClassC) |
| 2026-01-19 | 3.169.173.106 (ClassC) |
| Date | Domain | IP |
| images.obroncology.com | 2018-02-01 | 13.33.166.8 |
| argus.obroncology.com | 2024-02-12 | 18.238.192.32 |
| www.obroncology.com | 2025-01-08 | 34.203.172.244 |