| Property | Value |
| mail-abuse@cert.br |
| Date | IP Address |
| 2024-07-02 | 52.86.117.75 (ClassC) |
| 2025-03-03 | 3.213.224.95 (ClassC) |
| 2025-04-23 | 54.86.230.78 (ClassC) |
| 2025-07-22 | 3.230.160.196 (ClassC) |
| 2025-09-20 | 44.213.164.21 (ClassC) |
| 2025-10-27 | 34.237.69.225 (ClassC) |
| 2025-12-05 | 100.28.7.4 (ClassC) |
| 2026-02-24 | 100.50.58.148 (ClassC) |
| Date | Domain | IP |
| mx01.csn.com.br | 2014-06-16 | 200.216.14.112 |
| ri.csn.com.br | 2025-07-22 | 3.230.160.196 |
| www.csn.com.br | 2023-11-01 | 34.192.234.156 |