203.228.137.0/24

ip:	203.228.137.0 
loc:	South Korea, Cheongju-si (North Chungcheong)  
isp:	AS7562 HCN Dongjak » HCN Dongjak » Shinbiro 582.036 ms
route:	203.228.137.0/24, SEJONG-KR - SEJONG NETWORKS, KR (Hanam (Sangil-ro 10-gil)) ... 
reg:	203.228.128.0/17, KR, APNIC, 1996-04-23
asn:	AS7562 - HCNSEOCHO-AS HCN Dongjak, KR
	  AS4766  - KIXS-AS-KR Korea Telecom, KR
addr:	  12 Gwacheon-daero 7-gil Gwacheon-si Gyeonggi-do (Galhyeondong)

see also:
   203.228.128.0/17 AS4670   SEJONG-KR SEJONG NETWORKS, KR
   203.228.128.0/18 AS4670   SEJONG-KR SEJONG NETWORKS, KR