Robtex

Up: 207.218.246.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 207.218.247.0/25
Down right: 207.218.247.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
207.218.247.132	PTR	nsx3.theplanet.com
207.218.247.132	A	nsx3.ev1servers.net
207.218.247.133	PTR	nsx4.theplanet.com
207.218.247.133	A	nsx4.ev1servers.net
207.218.247.135	PTR	ns1.theplanet.com
207.218.247.135	A	ns2.davign.com
207.218.247.135	A	ns1.theexpogroup.com
207.218.247.251	PTR	ev1-207-218-247-251.theplanet.com
207.218.247.251	A	progeny.ev1servers.net