| Date | IP Address |
| 2021-03-27 | 50.28.33.104 (ClassC) |
| 2025-12-07 | 76.223.54.146 (ClassC) |
| Date | Domain | IP |
| smtp01.flatbox.net | 2025-11-30 | 13.248.169.48 |
| smtp1.flatbox.net | 2025-11-30 | 76.223.54.146 |
| mx1.flatbox.net | 2025-12-07 | 76.223.54.146 |
| smtp2.flatbox.net | 2025-12-07 | 76.223.54.146 |
| mail3.flatbox.net | 2025-12-07 | 13.248.169.48 |
| mx3.flatbox.net | 2025-12-07 | 13.248.169.48 |
| mail8.flatbox.net | 2025-12-07 | 13.248.169.48 |
| posta.flatbox.net | 2025-11-30 | 76.223.54.146 |
| mailgate.flatbox.net | 2025-12-04 | 13.248.169.48 |
| remote.flatbox.net | 2025-12-07 | 13.248.169.48 |
| smtpauth.flatbox.net | 2025-12-07 | 76.223.54.146 |
| ns.flatbox.net | 2025-12-07 | 76.223.54.146 |
| www.flatbox.net | 2025-11-30 | 76.223.54.146 |