Robtex

Up: 203.109.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 203.109.0.0/20
Down right: 203.109.16.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.109.0.80	A	www.jongwan.com
203.109.0.80	A	yell.co.kr
203.109.0.80	A	jongwan.com
203.109.0.197	A	biz.haion.net
203.109.1.21	PTR	mail.bixsoft.net
203.109.1.21	PTR	ns1.bixsoft.net
203.109.1.21	PTR	mail.sinzi.net
203.109.3.170	A	mail.samhwaace.com
203.109.5.130	A	ns.wenit.co.kr
203.109.5.135	A	wenit.co.kr
203.109.5.135	A	www.wenit.co.kr
203.109.5.139	A	mail.wenit.co.kr
203.109.10.11	A	wingmail.winglish.com
203.109.11.106	A	pointex.co.kr
203.109.12.50	A	g5co.com
203.109.12.50	A	921938.cn
203.109.12.50	A	mail.gfive.co.kr
203.109.13.189	PTR	mail.alim.co.kr
203.109.19.131	A	mail.costel.co.kr
203.109.19.133	A	lhsoft.co.kr
203.109.20.2	PTR	mail.macoll.com
203.109.20.2	PTR	mail.macoll.kr
203.109.20.2	A+PTR	mail.macoll.co.kr
203.109.22.130	A	ns.silvershine.net
203.109.22.130	A	silvershine.net
203.109.22.130	A	ns.asungelec.com
203.109.22.253	A	antiroot.cf
203.109.22.253	A	www.anti-root.kr
203.109.22.253	A	anti-root.kr
203.109.24.77	A	xn--vl2b29qtpcl3amxu01dqpa.com
203.109.24.194	A	e-wut.com
203.109.24.213	A	e-wut.com
203.109.24.237	A	mail.e-wut.com
203.109.24.237	A	mail.eduvictory.com
203.109.24.237	A	mail.mosb.co.kr
203.109.27.200	A	beyondme247.com
203.109.28.211	A	bedu.or.kr
203.109.29.133	A	ns1.lhsoft.co.kr
203.109.29.233	A	ns4.lhsoft.co.kr
203.109.30.200	A	www.sorimachi.co.kr
203.109.30.200	A	sorimachi.co.kr
203.109.30.200	A	mail.sorimachi.co.kr
203.109.30.203	A	mail.albumok.com
203.109.31.2	A	kjrt.co.kr