| Date | IP Address |
| 2021-02-12 | 52.4.31.184 (ClassC) |
| 2025-12-31 | 52.205.221.42 (ClassC) |
| 2026-01-21 | 52.201.156.17 (ClassC) |
| Date | Domain | IP |
| imap1.frncomunicacao.com.br | 2024-07-28 | 52.72.76.242 |
| ns1.frncomunicacao.com.br | 2026-01-01 | 3.225.252.1 |
| imap2.frncomunicacao.com.br | 2021-02-10 | 52.4.31.184 |
| auth.frncomunicacao.com.br | 2024-07-07 | 54.209.211.130 |
| email.frncomunicacao.com.br | 2024-07-08 | 54.197.238.215 |
| mailin.frncomunicacao.com.br | 2025-12-31 | 52.205.221.42 |