| Date | IP Address |
| 2019-10-12 | 192.185.215.200 (ClassC) |
| 2024-11-21 | 31.170.163.200 (ClassC) |
| 2026-02-11 | 151.106.100.115 (ClassC) |
| Date | Domain | IP |
| cpanel.stelzer.com.br | 2025-01-23 | 31.170.163.200 |
| mail.stelzer.com.br | 2024-11-21 | 31.170.163.200 |
| autodiscover.stelzer.com.br | 2024-11-07 | 31.170.163.200 |
| ssieventos.stelzer.com.br | 2024-09-13 | 31.170.163.200 |