210.123.0.0 - 210.123.127.255 (KORNET) Korea Telecom; 100 Sejong-no Chongno-gu Seoul, Korea; 110-777; KR 210.123.128.0 - 210.123.191.255 (KORNET) Korea Telecom; 100 Sejong-no Chongno-gu Seoul, Korea; 110-777; KR 210.123.192.0 - 210.123.223.255 (KORNET) Korea Telecom; 100 Sejong-no Chongno-gu Seoul, Korea; 110-777; KR 210.123.224.0 - 210.123.225.255 (KTSH) Dunsan Superhighway Center(DSC); 1374, Dunsandong Seoku, Daejunkwangyouksi; TAEJON; KR