203.249.0.0 - 203.249.127.255 (KREN) Korean Education Network; San 56-1, Shilrim-dong, Kwanak-gu, Seoul, Korea; KR 203.249.128.0 - 203.249.159.255 (JUNGANG-NET) Jung Ang Il Bo; KR 203.249.160.0 - 203.249.191.255 (NDSNET) Nongshim Data System Co. Ltd (NDS); KR 203.249.192.0 - 203.249.223.255 (SMC-SUBNET-BULK) Samsung Medical Center; KR 203.249.224.0 - 203.249.255.255 (RIST-NET) Research Institute of Industrial Science & Technology; KR