| Date | IP Address |
| 2021-05-02 | 52.217.161.13 (ClassC) |
| 2021-05-22 | 52.217.171.93 (ClassC) |
| 2023-06-22 | 52.217.118.141 (ClassC) |
| 2024-07-19 | 52.217.226.125 (ClassC) |
| 2024-09-13 | 52.216.95.50 (ClassC) |
| 2024-12-17 | 52.217.119.29 (ClassC) |
| 2025-01-12 | 52.216.106.66 (ClassC) |
| 2025-01-15 | 52.216.26.3 (ClassC) |
| 2025-03-28 | 54.231.204.37 (ClassC) |
| 2025-09-22 | 16.15.204.234 (ClassC) |
| 2025-12-02 | 52.217.206.85 (ClassC) |
| 2026-01-20 | 52.217.192.5 (ClassC) |
| Date | Domain | IP |
| api.koltzau.com | 2024-08-29 | 52.84.162.74 |
| ittools.koltzau.com | 2024-07-10 | 204.246.191.103 |
| www.ittools.koltzau.com | 2024-06-28 | 204.246.191.120 |