| Date | IP Address | 
| 2020-12-03 | 91.228.197.140 (ClassC) | 
| 2025-11-04 | 77.55.253.85 (ClassC) | 
| Date | Domain | IP | 
| mail1.swan.net.pl | 2025-09-20 | 77.55.253.85 | 
| www1.swan.net.pl | 2025-07-11 | 77.55.253.85 | 
| mx1.swan.net.pl | 2025-09-23 | 77.55.253.85 | 
| imap2.swan.net.pl | 2025-10-15 | 77.55.253.85 | 
| mx2.swan.net.pl | 2025-09-17 | 77.55.253.85 | 
| pop3.swan.net.pl | 2025-09-11 | 77.55.253.85 | 
| secure.swan.net.pl | 2025-08-24 | 77.55.253.85 | 
| mailgate.swan.net.pl | 2025-09-11 | 77.55.253.85 | 
| auth.swan.net.pl | 2025-09-22 | 77.55.253.85 | 
| smtpauth.swan.net.pl | 2025-11-04 | 77.55.253.85 | 
| mailin.swan.net.pl | 2025-10-31 | 77.55.253.85 | 
| pop.swan.net.pl | 2025-10-10 | 77.55.253.85 | 
| authsmtp.swan.net.pl | 2025-09-12 | 77.55.253.85 | 
| mailserver.swan.net.pl | 2025-09-14 | 77.55.253.85 | 
| mailgw.swan.net.pl | 2025-09-11 | 77.55.253.85 |