Robtex

Up: 218.159.96.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 218.159.100.0/23
Down right: 218.159.102.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
218.159.100.1	PTR	kup-mail.kup.co.kr
218.159.100.1	A	mail.douglaspharm.com
218.159.100.3	A+PTR	www.kup.co.kr
218.159.100.3	A	kup.co.kr
218.159.100.4	A	hopkins.co.kr
218.159.100.4	A	calebml.com
218.159.100.5	A	kuppda.com
218.159.100.6	A	kucn.co.kr
218.159.100.11	A	ns1.herbcare365.com
218.159.100.11	A	ns.calebml.com
218.159.100.11	A	ns.kup.co.kr
218.159.100.17	A	ns.douglasbiotech.com
218.159.100.17	A	ns2.douglasbiotech.com
218.159.100.21	A	calebml.com
218.159.100.169	A	bohunshop.or.kr
218.159.100.169	A	bohun.or.kr
218.159.100.169	A	bohunshop.kr
218.159.100.172	A	ns1.bohun.or.kr
218.159.100.173	A	spam.bohun.or.kr
218.159.100.181	A	www.bohun.or.kr
218.159.100.226	A	atobiz.net
218.159.101.1	A	capsmail.adt.co.kr
218.159.101.1	A	mail.adt.co.kr
218.159.101.1	A	mail.caps.co.kr
218.159.101.4	A+PTR	email.caps.co.kr
218.159.101.5	A	ssm.caps.co.kr
218.159.101.5	A	ssm.dbefire.co.kr
218.159.101.5	A	ssm.adtsecurity.co.kr
218.159.101.11	A	demo.adt.co.kr
218.159.101.11	A	demo.caps.co.kr
218.159.102.52	A	spam.wsfeed.co.kr
218.159.102.53	PTR	wsfeed.co.kr
218.159.102.53	A	mail.wsfeed.co.kr
218.159.102.53	A	www.wsfeed.co.kr
218.159.102.61	A	css.wsfeed.co.kr
218.159.102.62	A	www.wfc.co.kr
218.159.102.62	A	ns.wfc.co.kr
218.159.102.251	A+PTR	lgntel.com
218.159.102.251	A	ns.lgntel.com
218.159.102.253	A	www.fine-phone.com
218.159.102.253	A	fine-phone.com