Robtex

Up: 211.232.32.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 211.232.36.0/23
Down right: 211.232.38.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
211.232.36.192	PTR	static.211-232-36-192.nexg.net
211.232.36.205	PTR	static.211-232-36-205.nexg.net
211.232.37.2	PTR	static.211-232-37-2.nexg.net
211.232.37.3	PTR	mail.isasel.co.kr
211.232.37.244	A	kvinpark.lgnas.com
211.232.39.4	PTR	static.211-232-39-4.nexg.net
211.232.39.4	A	mail.eduro.net
211.232.39.91	PTR	static.211-232-39-91.nexg.net
211.232.39.91	A	ns1.koreadns.co.kr
211.232.39.91	A	ns1.q0a.net
211.232.39.92	PTR	static.211-232-39-92.nexg.net
211.232.39.92	A	ns2.koreadns.co.kr
211.232.39.92	A	ns2.q0a.net
211.232.39.102	A	ons.7laa.info
211.232.39.102	A	*.7laa.info
211.232.39.102	A	shipin.7laa.info
211.232.39.104	PTR	static.211-232-39-104.nexg.net
211.232.39.104	A	mail.i7aa.com
211.232.39.104	A	mail.dwpoa.com
211.232.39.105	PTR	static.211-232-39-105.nexg.net