| Date | IP Address |
| 2020-08-12 | 63.32.32.27 (ClassC) |
| 2021-02-27 | 52.49.151.107 (ClassC) |
| 2024-09-29 | 52.212.52.84 (ClassC) |
| 2025-03-06 | 192.124.249.38 (ClassC) |
| 2025-05-08 | 76.223.11.49 (ClassC) |
| 2025-06-21 | 104.22.6.208 (ClassC) |
| 2026-02-22 | 104.20.46.30 (ClassC) |
| 2026-02-25 | 172.66.144.166 (ClassC) |
| Date | Domain | IP |
| servicedesk.oysterhr.com | 2026-01-02 | 162.159.140.147 |
| app.oysterhr.com | 2024-09-29 | 52.212.52.84 |
| sales.oysterhr.com | 2025-12-25 | 44.216.134.91 |
| support.oysterhr.com | 2025-03-08 | 216.198.53.1 |
| www.oysterhr.com | 2025-02-16 | 151.101.22.132 |