| Date | IP Address |
| 2025-01-04 | 222.231.28.18 (ClassC) |
| Date | Domain | IP |
| ns1.dau.co.kr | 2024-10-12 | 222.231.28.18 |
| www1.dau.co.kr | 2024-12-12 | 222.231.28.18 |
| mx1.dau.co.kr | 2024-01-14 | 222.231.28.18 |
| ns2.dau.co.kr | 2025-01-04 | 222.231.28.18 |
| www2.dau.co.kr | 2024-10-21 | 222.231.28.18 |
| mx2.dau.co.kr | 2024-10-01 | 222.231.28.18 |
| relay2.dau.co.kr | 2024-01-07 | 222.231.28.18 |
| poczta.dau.co.kr | 2024-11-05 | 222.231.28.18 |
| exchange.dau.co.kr | 2024-01-06 | 222.231.28.18 |
| auth.dau.co.kr | 2024-09-29 | 222.231.28.18 |
| webmail.dau.co.kr | 2024-10-29 | 222.231.28.18 |
| email.dau.co.kr | 2024-09-07 | 222.231.28.18 |
| mailin.dau.co.kr | 2024-11-01 | 222.231.28.18 |
| imap.dau.co.kr | 2024-09-19 | 222.231.28.18 |
| ftp.dau.co.kr | 2024-10-29 | 222.231.28.18 |
| authsmtp.dau.co.kr | 2025-01-04 | 222.231.28.18 |
| sniper.dau.co.kr | 2024-09-20 | 222.231.28.18 |
| docs.dau.co.kr | 2024-09-12 | 222.231.28.18 |
| ns.dau.co.kr | 2024-01-08 | 222.231.28.18 |
| smtps.dau.co.kr | 2024-09-30 | 222.231.28.18 |
| recruit.dau.co.kr | 2024-10-15 | 222.231.28.18 |
| mailgw.dau.co.kr | 2024-10-18 | 222.231.28.18 |
| mailx.dau.co.kr | 2024-01-08 | 222.231.28.18 |
| mx.dau.co.kr | 2024-09-06 | 222.231.28.18 |
| relay.dau.co.kr | 2024-10-14 | 222.231.28.18 |
| gateway.dau.co.kr | 2024-11-13 | 222.231.28.18 |