| Date | IP Address |
| 2023-08-26 | 52.96.119.120 (ClassC) |
| 2024-05-13 | 40.97.223.120 (ClassC) |
| 2024-06-16 | 52.96.164.216 (ClassC) |
| 2024-08-31 | 52.96.164.248 (ClassC) |
| 2024-09-17 | 52.96.223.56 (ClassC) |
| 2024-10-05 | 52.96.121.24 (ClassC) |
| 2024-11-21 | 52.96.119.168 (ClassC) |
| 2024-12-19 | 52.96.121.56 (ClassC) |
| 2025-01-30 | 52.96.113.200 (ClassC) |
| 2025-04-12 | 52.96.66.168 (ClassC) |
| 2025-04-21 | 52.96.113.232 (ClassC) |
| 2026-01-28 | 52.96.91.40 (ClassC) |
| 2026-03-02 | 52.96.91.56 (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 |