Robtex

Up: 66.225.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 66.225.64.0/20
Down right: 66.225.80.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.225.64.0	PTR	unassigned.midatlanticbb.com
66.225.72.2	A+PTR	dns1.midatlanticbb.com
66.225.72.4	A	ns3.ctwisp.com
66.225.72.4	A	ns1.catalinas.net
66.225.72.4	A	peewee.staffnet.com
66.225.72.34	A	yondoo.net
66.225.72.46	A	time.staffnet.com
66.225.72.46	A	ops.midatlanticbb.com
66.225.72.46	A	time.midatlanticbb.com
66.225.72.99	PTR	unassigned.midatlanticbb.com
66.225.72.163	PTR	unassigned.midatlanticbb.com
66.225.74.64	PTR	unassigned.midatlanticbb.com
66.225.74.64	A	austin.teamscci.com
66.225.74.64	A	*.teamscci.com
66.225.74.98	PTR	unassigned.midatlanticbb.com
66.225.75.113	A	mail.zullotech.com
66.225.75.193	PTR	unassigned.midatlanticbb.com
66.225.80.2	PTR	sw.wan.dc.midatlanticbb.com
66.225.80.6	A	ns2.catalinas.net
66.225.80.6	A	robert.staffnet.com
66.225.80.6	A	odin.midatlanticbb.com
66.225.82.2	PTR	hosting.midatlanticbb.com
66.225.82.2	A	mail.westcomedia.com
66.225.82.2	A	mail.westcom.me
66.225.82.3	PTR	midatlanticbb.com
66.225.82.3	PTR	mail.midatlanticbb.com
66.225.82.63	A	spaminator.catalinaisp.com
66.225.82.63	A	neo2.catalinaisp.com
66.225.82.63	A	mail.catalina-isp.com
66.225.82.85	A	mailcenter.closefred.net
66.225.82.85	A	closefred.net
66.225.82.85	A	*.closefred.net
66.225.82.99	PTR	unassigned.midatlanticbb.com
66.225.82.161	PTR	unassigned.midatlanticbb.com
66.225.83.54	A	ftp.protelservices.com
66.225.83.226	PTR	unassigned.midatlanticbb.com
66.225.92.195	PTR	unassigned.midatlanticbb.com
66.225.93.227	PTR	unassigned.midatlanticbb.com
66.225.94.224	PTR	unassigned.midatlanticbb.com