Robtex

Up: 211.61.51.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 211.61.51.0/26
Down right: 211.61.51.64/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
211.61.51.101	PTR	bh.go.kr
211.61.51.101	PTR	president.go.kr
211.61.51.101	PTR	www.bh.go.kr
211.61.51.108	PTR	nsb.bluehouse.go.kr
211.61.51.108	PTR	nsb.cheongwadae.go.kr
211.61.51.108	PTR	nsb.chongwadae.go.kr
211.61.51.113	A	letter.president.go.kr
211.61.51.113	A	letter.cwd.go.kr
211.61.51.113	A	letter.chongwadae.go.kr
211.61.51.119	A	ms.president.go.kr
211.61.51.119	A	ms.bluehouse.go.kr