| Date | IP Address |
| 2026-01-31 | 211.239.164.66 (ClassC) |
| Date | Domain | IP |
| mail01.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |
| mail11.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |
| mx02.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |
| mail12.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |
| mail3.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |
| mx7.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |
| barracuda.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |
| email.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |
| antispam.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |
| ftp.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |
| hermes.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |
| mailsrv.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |
| mailrelay.jdtek.co.kr | 2026-01-31 | 211.239.164.66 |