Loading HOSTNAMES HOSTNAMES Up: 222.239.220.0/23IPTypeHostname222.239.221.21Awww.sdu.ac.kr222.239.221.21Asdu.ac.kr222.239.221.151A+PTRmail.sdu.ac.kr222.239.221.152A+PTRspam.sdu.ac.kr222.239.221.250Ans.sdu.ac.kr Latest updates: