| Date | IP Address |
| 2021-02-18 | 35.221.39.253 (ClassC) |
| 2025-12-18 | 104.18.20.120 (ClassC) |
| 2026-01-24 | 104.18.21.120 (ClassC) |
| Date | Domain | IP |
| imap1.arlingtonpc.net | 2025-12-07 | 104.18.21.120 |
| imap2.arlingtonpc.net | 2025-12-18 | 104.18.20.120 |
| exchange.arlingtonpc.net | 2025-11-08 | 104.18.20.120 |
| comune.arlingtonpc.net | 2025-05-25 | 104.18.20.120 |
| auth.arlingtonpc.net | 2025-07-11 | 104.18.21.120 |
| email.arlingtonpc.net | 2025-07-10 | 104.18.21.120 |
| imap.arlingtonpc.net | 2025-03-13 | 23.81.68.43 |
| ftp.arlingtonpc.net | 2024-12-05 | 104.18.20.120 |
| authsmtp.arlingtonpc.net | 2024-12-26 | 104.18.20.120 |
| hermes.arlingtonpc.net | 2025-07-11 | 104.18.21.120 |
| host.arlingtonpc.net | 2025-09-16 | 104.18.21.120 |