Robtex

Up: 210.204.248.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 210.204.248.0/23
Down right: 210.204.250.0/23

IP	Type	Hostname
210.204.251.22	A+PTR	atm2.pubnet.ne.kr
210.204.251.31	A	pns1.pubnet.ne.kr
210.204.251.32	A	pns2.pubnet.ne.kr
210.204.251.33	A	pns3.pubnet.ne.kr
210.204.251.34	A	pns4.pubnet.ne.kr
210.204.251.34	A	dms.pubnet.ne.kr