Robtex

Up: 66.166.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 66.166.32.0/22
Down right: 66.166.36.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.166.32.9	A+PTR	h-66-166-32-9.chcg.il.globalcapacity.com
66.166.32.99	A+PTR	h-66-166-32-99.chcg.il.globalcapacity.com
66.166.32.115	A+PTR	h-66-166-32-115.chcg.il.globalcapacity.com
66.166.32.138	A+PTR	h-66-166-32-138.chcg.il.megapath.net
66.166.32.197	A	h-66-166-32-197.chcg.il.megapath.net
66.166.32.209	A+PTR	h-66-166-32-209.chcg.il.megapath.net
66.166.32.216	A+PTR	h-66-166-32-216.chcg.il.megapath.net
66.166.32.239	A	h-66-166-32-239.chcg.il.globalcapacity.com
66.166.34.6	A	larrybutterfield.com
66.166.34.13	A	eni.com.au
66.166.34.13	A	elginbmh.com
66.166.34.13	A	elginengineering.net
66.166.34.22	A	mail.sinngl.com
66.166.34.22	A	sinngl.com
66.166.34.26	A+PTR	h-66-166-34-26.chcg.il.globalcapacity.com
66.166.34.89	A+PTR	h-66-166-34-89.chcg.il.globalcapacity.com
66.166.34.132	A	h-66-166-34-132.chcg.il.globalcapacity.com
66.166.34.137	A+PTR	h-66-166-34-137.chcg.il.globalcapacity.com
66.166.34.239	A	h-66-166-34-239.chcg.il.globalcapacity.com
66.166.35.2	A	h-66-166-35-2.chcgilgm.static.covad.net
66.166.35.115	PTR	mcsmgt.com
66.166.35.196	A	mail.daubertcromwell.com
66.166.35.243	PTR	h-66-166-35-243.chcg.il.megapath.net
66.166.35.243	A	dowscrew.com
66.166.36.130	A	contempincmail.com
66.166.37.130	A+PTR	webmail.signatureroom.com
66.166.39.171	PTR	vpn.liquitech.net
66.166.39.194	A	h-66-166-39-194.chcg.il.megapath.net