Robtex

Up: 211.52.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 211.52.144.0/21
Down right: 211.52.152.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
211.52.144.132	PTR	mail.futurenuri.com
211.52.144.132	A	futurenuri.co.kr
211.52.144.132	A	www.futurenuri.co.kr
211.52.144.150	A	mail2.futurenuri.com
211.52.148.0	PTR	noneptr.skline.co.kr
211.52.153.132	A	enovationit.com