| Property | Value |
| mail-abuse@cert.br |
| Date | IP Address |
| 2021-11-16 | 34.194.93.83 (ClassC) |
| 2023-11-01 | 34.192.234.156 (ClassC) |
| 2024-08-09 | 34.198.198.31 (ClassC) |
| 2024-10-20 | 3.232.141.133 (ClassC) |
| 2024-12-25 | 44.196.196.205 (ClassC) |
| 2025-01-02 | 3.232.79.91 (ClassC) |
| 2025-03-16 | 54.175.219.48 (ClassC) |
| 2025-04-19 | 54.243.101.254 (ClassC) |
| 2025-05-07 | 54.86.230.78 (ClassC) |
| 2025-06-13 | 54.157.101.39 (ClassC) |
| 2025-06-28 | 54.86.237.33 (ClassC) |
| 2025-08-24 | 44.195.124.140 (ClassC) |
| 2026-02-01 | 34.196.110.186 (ClassC) |
| 2026-02-14 | 44.209.20.139 (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 |