| Date | IP Address |
| 2021-02-26 | 222.122.213.205 (ClassC) |
| 2026-02-15 | 222.122.213.182 (ClassC) |
| Date | Domain | IP |
| mail10.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| mx0.swc.co.kr | 2026-02-15 | 222.122.213.182 |
| mx01.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| mail1.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| imap1.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| smtp1.swc.co.kr | 2025-10-26 | 222.122.213.182 |
| server1.swc.co.kr | 2026-02-15 | 222.122.213.182 |
| mx1.swc.co.kr | 2025-10-26 | 222.122.213.182 |
| mail2.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| imap2.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| smtp2.swc.co.kr | 2025-10-26 | 222.122.213.182 |
| mx2.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| mail3.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| pop3.swc.co.kr | 2025-10-26 | 222.122.213.182 |
| mx3.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| mail4.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| mail5.swc.co.kr | 2025-10-26 | 222.122.213.182 |
| mx7.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| barracuda.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| poczta.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| exchange.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| comune.swc.co.kr | 2025-10-26 | 222.122.213.182 |
| mail.comune.swc.co.kr | 2025-11-09 | 222.122.213.182 |
| secure.swc.co.kr | 2026-02-15 | 222.122.213.182 |
| mailgate.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| remote.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| auth.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| smtpauth.swc.co.kr | 2025-10-26 | 222.122.213.182 |
| l.swc.co.kr | 2026-02-15 | 222.122.213.182 |
| email.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| m.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| spam.swc.co.kr | 2026-02-15 | 222.122.213.182 |
| mailin.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| correo.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| imap.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| pop.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| ftp.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| authsmtp.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| mailer.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| server.swc.co.kr | 2025-10-26 | 222.122.213.182 |
| mailserver.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| smtps.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| mailhost.swc.co.kr | 2026-02-15 | 222.122.213.182 |
| post.swc.co.kr | 2025-10-26 | 222.122.213.182 |
| mailout.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| mailgw.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| mailx.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| a.mx.swc.co.kr | 2025-10-26 | 222.122.213.182 |
| relay.swc.co.kr | 2025-10-27 | 222.122.213.182 |
| gateway.swc.co.kr | 2025-10-27 | 222.122.213.182 |