Robtex

Up: 211.116.112.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 211.116.112.0/22
Down right: 211.116.116.0/22

IP	Type	Hostname
211.116.114.19	PTR	ns1.rookdns.com
211.116.116.14	PTR	ns1.rookdns.com
211.116.116.28	PTR	ns1.rookdns.com
211.116.116.83	PTR	ns1.rookdns.com
211.116.117.119	PTR	ns1.rookdns.com
211.116.118.10	PTR	ns1.rookdns.com
211.116.118.122	PTR	ns1.rookdns.com
211.116.118.162	PTR	ns1.rookdns.com
211.116.118.163	PTR	ns1.rookdns.com
211.116.119.216	PTR	ns1.rookdns.com