| Date | IP Address |
| 2021-03-29 | 52.95.164.58 (ClassC) |
| 2024-07-10 | 52.95.164.107 (ClassC) |
| 2024-09-04 | 16.12.1.47 (ClassC) |
| 2024-12-26 | 16.12.0.71 (ClassC) |
| 2025-03-23 | 16.12.1.31 (ClassC) |
| 2025-04-25 | 16.12.2.63 (ClassC) |
| 2025-08-07 | 3.5.234.198 (ClassC) |
| Date | Domain | IP |
| home.tecem.com.br | 2024-06-01 | 16.12.0.19 |
| comune.tecem.com.br | 2024-07-13 | 16.12.0.35 |
| email.tecem.com.br | 2024-07-06 | 16.12.1.67 |
| antispam.tecem.com.br | 2024-07-10 | 52.95.164.107 |
| correo.tecem.com.br | 2024-09-24 | 16.12.1.31 |
| authsmtp.tecem.com.br | 2024-07-07 | 52.95.164.1 |