Robtex

Up: 203.254.0.0/17
Can't show all results, try to descend to a more specific CIDR
Down left: 203.254.0.0/19
Down right: 203.254.32.0/19
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
203.254.1.113	A+PTR	bmail.or.kr
203.254.1.113	A+PTR	www.bmail.or.kr
203.254.1.113	PTR	bmail.cwd.or.kr
203.254.1.210	A	mdm2.president.go.kr
203.254.33.2	A+PTR	dns.vsix.kr
203.254.33.2	A	dns.ngix.ne.kr
203.254.33.2	A	dns.vsix.net
203.254.33.100	A+PTR	vsix.kr
203.254.33.100	A+PTR	vsix.net
203.254.33.100	PTR	usis.or.kr
203.254.33.101	A	www.ngix.ne.kr
203.254.33.103	PTR	dns2.vsix.kr