Robtex

Up: 203.228.128.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 203.228.192.0/19
Down right: 203.228.224.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.228.193.30	A+PTR	boehydis.com
203.228.193.30	A	mail.hydis.co.kr
203.228.193.30	A	mail.boehydis.com
203.228.193.60	A	hydis.com
203.228.202.16	PTR	dentinet.co.kr
203.228.202.16	PTR	www.dentinet.co.kr
203.228.202.21	PTR	kda.or.kr
203.228.202.21	PTR	www.kda.or.kr
203.228.206.150	A	ncvan.com
203.228.206.174	A	tpay.co.kr
203.228.206.174	A	www.tpay.co.kr
203.228.212.118	A	casuallife.net
203.228.213.135	A	iglb1.lottetour.com
203.228.213.144	A	www.lotteuhak.com
203.228.213.150	A	www.lottetours.co.kr
203.228.213.150	A	lottenoble.com
203.228.213.150	A	lotteuhak.com
203.228.213.196	A	www.lottetour.com
203.228.213.197	A	www.lottetour.com
203.228.213.198	A	www.lottetour.com
203.228.213.199	A	lotteuhak.com
203.228.213.215	A	mail.lottetours.com
203.228.213.236	A	airlotte.gmarket.co.kr
203.228.214.231	A	www.lottetour.com
203.228.214.232	A	www.lottetour.com
203.228.216.1	A	hydex.hlc.co.kr
203.228.216.19	A	mail.hyundaiexpress.com
203.228.216.25	A	hlcmedi.hlc.co.kr
203.228.216.240	A	hlc.co.kr
203.228.216.240	A	www.e-hlc.com
203.228.216.240	A	hlctos.net
203.228.234.199	A+PTR	mail.krfutures.co.kr
203.228.234.199	A	mail.krsec.co.kr
203.228.234.210	A	krsec.co.kr
203.228.234.210	A	krfutures.co.kr
203.228.237.131	A+PTR	spam.welcron.com
203.228.237.131	A	smtp.kwb21.com
203.228.237.132	A+PTR	mail.welcron.com
203.228.237.132	A	mail.kwb21.com
203.228.244.130	A	contents.mediopia.co.kr
203.228.244.167	A	mail.mediopia.co.kr
203.228.244.170	A	edutrack.co.kr
203.228.247.241	PTR	korcom.kr
203.228.247.241	PTR	exch2.korcom.kr
203.228.248.2	A	ns.wpc.kr
203.228.248.4	A	www.wpc.kr
203.228.248.4	A	wpc.kr
203.228.255.227	A	myspeed.shinbiro.com