Robtex

Up: 211.116.129.0/24
Can't show all results, try to descend to a more specific CIDR
Down left: 211.116.129.128/26
Down right: 211.116.129.192/26
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
211.116.129.214	PTR	mail.platypusoft.com
211.116.129.214	A	hamoin.com
211.116.129.214	A	intra.hamoin.com
211.116.129.248	A+PTR	sendmail.netien.com
211.116.129.248	A	mail.netien.com
211.116.129.248	A	mail.e-society.co.kr