Robtex

Up: 66.218.4.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 66.218.4.0/24
Down right: 66.218.5.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.218.4.1	A	hostedservice-66-218-4-1.usadatanet.com
66.218.4.2	A	hostedservice-66-218-4-2.usadatanet.com
66.218.4.3	A	hostedservice-66-218-4-3.usadatanet.com
66.218.4.4	A	hostedservice-66-218-4-4.usadatanet.com
66.218.4.5	A	hostedservice-66-218-4-5.usadatanet.com
66.218.4.6	A	hostedservice-66-218-4-6.usadatanet.com
66.218.4.34	PTR	mail.spoleta.com
66.218.4.254	PTR	sti-tech.com
66.218.4.254	A	mail.sti-tech.com
66.218.4.254	A	mail.adkxlvir.com
66.218.5.2	PTR	extra.benchmarkmedia.com
66.218.5.2	A	mail3.benchmarkmedia.com
66.218.5.9	PTR	calmar-gateway.usadatanet.com
66.218.5.10	A	myhivis.com
66.218.5.10	A	adamkovar.com
66.218.5.11	A	adamkovar.com
66.218.5.11	A	iconetraffic.com
66.218.5.11	A	iconeproducts.com