| Date | IP Address |
| 2025-11-30 | 54.78.232.42 (ClassC) |
| 2025-12-17 | 34.254.58.192 (ClassC) |
| 2025-12-29 | 3.248.11.117 (ClassC) |
| 2026-02-16 | 54.75.155.74 (ClassC) |
| Date | Domain | IP |
| owa.buerklin.com | 2024-05-13 | 91.25.221.220 |
| autodiscover.buerklin.com | 2023-08-26 | 52.96.119.120 |
| www.buerklin.com | 2024-05-13 | 13.107.213.70 |
| quarterly.buerklin.com | 2025-12-29 | 3.248.11.117 |