Robtex

Up: 64.246.4.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 64.246.4.0/24
Down right: 64.246.5.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.246.4.0	PTR	ev1s-64-246-4-0.theplanet.com
64.246.4.4	PTR	1h.com
64.246.4.8	PTR	ev1s-64-246-4-8.theplanet.com
64.246.4.37	PTR	ev1s-64-246-4-37.theplanet.com
64.246.4.88	PTR	ev1s-64-246-4-88.theplanet.com
64.246.4.91	PTR	ev1s-64-246-4-91.theplanet.com
64.246.4.92	PTR	ev1s-64-246-4-92.theplanet.com
64.246.4.196	A+PTR	web1.handhelditems.com
64.246.4.196	A	mail.handhelditems.com
64.246.4.205	A+PTR	mail1.handhelditems.com
64.246.4.205	A	*.hhinewsletter.com
64.246.4.205	A	hhinewsletter.com
64.246.4.216	PTR	handhelditems.com
64.246.4.230	A	mail230.virid.plugin.com.br
64.246.4.230	A	tr.entrega.plugin.com.br
64.246.5.203	A+PTR	mail1.logicmatehost.com
64.246.5.203	A	pleskwin1.logicmatehost.com
64.246.5.204	A	mail2.logicmatehost.com
64.246.5.204	A	pleskwin2.logicmatehost.com
64.246.5.205	A	mail3.logicmatehost.com
64.246.5.255	PTR	ev1s-64-246-5-255.theplanet.com