| Date | IP Address |
| 2021-11-22 | 13.226.15.9 (ClassC) |
| 2022-01-28 | 13.226.9.65 (ClassC) |
| 2022-07-25 | 108.159.227.118 (ClassC) |
| 2022-09-30 | 13.226.22.81 (ClassC) |
| 2025-04-12 | 204.246.191.69 (ClassC) |
| 2026-02-25 | 3.175.34.85 (ClassC) |
| 2026-03-08 | 3.175.34.26 (ClassC) |
| Date | Domain | IP |
| app2.enem.com.br | 2024-06-30 | 204.246.191.88 |
| prova.enem.com.br | 2026-01-19 | 18.229.104.184 |
| cdn.enem.com.br | 2024-07-28 | 99.84.66.95 |
| aluno.enem.com.br | 2024-03-17 | 99.84.66.58 |
| alunos.enem.com.br | 2025-04-12 | 204.246.191.69 |
| www.enem.com.br | 2024-11-25 | 170.82.174.30 |