| Date | IP Address |
| 2018-12-01 | 52.22.118.123 (ClassC) |
| 2018-12-01 | 52.6.18.196 (ClassC) |
| 2023-10-12 | 54.89.88.76 (ClassC) |
| 2023-10-12 | 34.195.152.228 (ClassC) |
| 2023-10-12 | 3.209.131.31 (ClassC) |
| 2023-10-12 | 18.235.173.216 (ClassC) |
| 2023-10-12 | 35.171.80.45 (ClassC) |
| 2023-10-12 | 3.83.75.231 (ClassC) |
| 2024-05-11 | 54.164.19.238 (ClassC) |
| 2024-05-11 | 34.239.11.87 (ClassC) |
| 2024-05-11 | 34.195.62.74 (ClassC) |
| 2024-05-11 | 54.83.192.240 (ClassC) |
| 2024-05-11 | 34.226.236.218 (ClassC) |
| 2024-05-11 | 54.88.95.200 (ClassC) |
| 2024-07-17 | 184.72.182.196 (ClassC) |
| 2024-07-17 | 184.72.230.108 (ClassC) |
| 2024-07-17 | 52.204.21.61 (ClassC) |
| 2024-07-17 | 54.88.164.44 (ClassC) |
| 2024-07-17 | 3.224.221.250 (ClassC) |
| 2024-07-17 | 44.213.190.138 (ClassC) |
| 2024-11-24 | 18.205.248.57 (ClassC) |
| 2025-03-28 | 34.236.167.81 (ClassC) |
| 2025-08-31 | 54.90.171.47 (ClassC) |
| 2025-09-08 | 52.200.255.233 (ClassC) |
| 2025-10-02 | 35.153.76.93 (ClassC) |
| 2025-10-14 | 50.17.202.251 (ClassC) |
| 2025-10-20 | 34.225.35.120 (ClassC) |
| 2025-11-22 | 18.235.54.96 (ClassC) |
| Date | Domain | IP |
| app.prd.dfe.nfecitel.com.br | 2023-09-08 | 100.24.93.186 |
| www.dfe.nfecitel.com.br | 2024-11-24 | 54.197.47.14 |
| www.nfecitel.com.br | 2024-11-24 | 18.205.248.57 |