Robtex

Up: 210.99.168.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 210.99.169.0/25
Down right: 210.99.169.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
210.99.169.131	A	ns.ncsc.go.kr
210.99.169.134	A	spam.ncsc.go.kr
210.99.169.152	A	mail5.ncsc.go.kr
210.99.169.153	A	mail.ncsc.go.kr
210.99.169.153	A	cyber.ncsc.go.kr
210.99.169.153	A	mail3.ncsc.go.kr
210.99.169.249	A	is.ncsc.go.kr