Robtex

Up: 211.111.160.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 211.111.160.0/21
Down right: 211.111.168.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
211.111.160.1	A+PTR	ns1.goraynet.co.kr
211.111.160.1	A	go-raynet.co.kr
211.111.160.1	A	goraynet.co.kr
211.111.160.2	PTR	ns2.goraynet.co.kr
211.111.160.3	PTR	mxm.raynet.co.kr
211.111.161.200	A	www.mtub.com
211.111.161.241	A	mail.easymon.com
211.111.161.242	A	easymon.com
211.111.161.242	A	xn--z52bt7uowb.com
211.111.161.242	A	www.easymon.com
211.111.165.1	A+PTR	ns3.goraynet.co.kr
211.111.165.1	A	ns3.go-raynet.co.kr
211.111.165.2	A+PTR	ns4.goraynet.co.kr
211.111.165.2	A	ns4.go-raynet.co.kr
211.111.165.3	PTR	mail.raynet.kr
211.111.170.15	A	ns2.wika.co.kr
211.111.172.71	A+PTR	a01.kuwoo.co.kr
211.111.172.71	A	ns1.kuwoo.co.kr
211.111.172.71	A	kuwoo.co.kr
211.111.172.72	PTR	a02.kuwoo.co.kr
211.111.172.72	A	kuwoo.co.kr
211.111.172.91	A	mail.hifivehr.com
211.111.172.92	A+PTR	mail.hifivehr.com
211.111.172.92	PTR	mail.dentop.co.kr
211.111.172.92	PTR	eml02.kuwoo.co.kr
211.111.174.196	A	mnlsolution.com