Robtex

Up: 211.47.128.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 211.47.192.0/19
Down right: 211.47.224.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
211.47.194.0	PTR	noneptr.skline.co.kr
211.47.200.200	A	master.onionsoftware.com
211.47.200.200	A	onionsoftware.com
211.47.206.4	A	ns1.4nb.co.kr
211.47.206.6	A	mail.4nb.co.kr
211.47.206.25	A	mail.videooffice.com
211.47.206.36	A	4nb.co.kr
211.47.206.45	A	mail.videooffice.net
211.47.206.85	A	mail.videooffice.com
211.47.206.87	A	mail.videooffice.net
211.47.206.101	A	mail.msdonair.com
211.47.206.101	A	msdonair.com
211.47.208.10	PTR	mail.polymirae.com
211.47.208.10	A	smtp.polymirae.com
211.47.208.18	A+PTR	moss.polymirae.com
211.47.208.42	A	mail.polymirae.com
211.47.208.51	A	mail.yeosu.tk
211.47.208.66	A	ns1.polymirae.com
211.47.208.67	A	ns2.polymirae.com
211.47.208.68	PTR	mail1.smrt.co.kr
211.47.222.68	PTR	mail1.smrt.co.kr
211.47.224.64	PTR	static.211-47-224-64.nexg.net
211.47.224.66	PTR	static.211-47-224-66.nexg.net
211.47.224.193	PTR	static.211-47-224-193.nexg.net
211.47.225.2	PTR	static.211-47-225-2.nexg.net
211.47.225.6	A	www.edsk.co.kr
211.47.225.8	A	mail.edsk.co.kr
211.47.225.66	PTR	mail.insideoptics.com
211.47.226.66	A+PTR	mail.amchamkorea.org
211.47.226.67	PTR	211-47-226-67.amchamkorea.org
211.47.227.82	A	khei.com
211.47.227.82	A	www.khei.com
211.47.227.105	A	chosunhotelbakery.com
211.47.227.194	PTR	static.211-47-227-194.nexg.net
211.47.231.130	PTR	static.211-47-231-130.nexg.net
211.47.231.130	A	incns.inctech.co.kr
211.47.231.130	A	*.inctech.co.kr
211.47.232.64	PTR	static.211-47-232-64.nexg.net
211.47.232.70	A	ns2.seamails.net
211.47.232.87	A	investorunited.co.kr
211.47.232.87	A	landmarkline.com
211.47.232.87	A	hanaroshipping.com
211.47.232.141	A	mail.dmon.co.kr
211.47.238.4	PTR	static.211-47-238-4.nexg.net
211.47.238.10	A	mail.limited40.com
211.47.238.82	A	mailmetal.nodong.org
211.47.238.82	A	metalunion.kr
211.47.238.82	A	kmwu.kr
211.47.238.90	A	metalunion.kr