Robtex

Up: 208.66.168.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 208.66.172.0/23
Down right: 208.66.174.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.66.172.6	A+PTR	ip6.208-66-172.static.steadfastdns.net
208.66.172.52	A+PTR	a.dns.clubexpress.com
208.66.172.53	A+PTR	b.dns.clubexpress.com
208.66.172.85	A	ip85.208-66-172.static.steadfastdns.net
208.66.172.92	A	mx3.capital-internet.net
208.66.172.94	PTR	talentfilter.biz
208.66.172.95	PTR	talentdrive.biz
208.66.172.100	PTR	dodgegrablifetour.com
208.66.172.100	A	requisitefilms.ca
208.66.172.100	A	*.kpnt.com
208.66.172.101	PTR	ip101.208-66-172.static.steadfastdns.net
208.66.172.103	PTR	ip103.208-66-172.static.steadfastdns.net
208.66.172.170	PTR	pctel.com
208.66.172.206	A	transformingdebttowealth.com
208.66.172.242	PTR	cvproxy.fastroot.com
208.66.172.242	A	gotsoap.org
208.66.172.243	A	midwestanimationpromotionsociety.org
208.66.173.15	A	mail.stressproducts.com
208.66.173.81	PTR	eshots.com
208.66.173.81	A	homedepot-photos.com
208.66.173.81	A	nikefrequentrunner.com
208.66.173.85	PTR	mail.carquotes.com
208.66.173.154	PTR	pcorp004.com
208.66.173.183	PTR	b13-23-brexch1.247brightstar.com
208.66.173.231	PTR	ip231.208-66-173.static.steadfastdns.net
208.66.173.231	A	realtimesg.com
208.66.173.231	A	putitupthere.com
208.66.173.244	PTR	ip244.208-66-173.static.steadfastdns.net
208.66.173.249	A	oppenheimereditions.com
208.66.174.3	PTR	mail.vividseats.com
208.66.174.4	PTR	ip4.208-66-174.static.steadfastdns.net
208.66.174.5	PTR	zimbra.vividseats.com
208.66.174.13	PTR	photo.com
208.66.174.27	A+PTR	photocafe.com
208.66.174.27	A	www.calumetdigital.com
208.66.174.27	A	calumetdigital.com
208.66.174.35	PTR	affinitydigital.com
208.66.174.36	PTR	mail.affinitydigital.net
208.66.174.36	A	www.affinitydigital.net
208.66.174.41	PTR	voyagernow.com
208.66.174.74	A+PTR	ip74.208-66-174.static.steadfastdns.net
208.66.174.91	PTR	ip91.208-66-174.static.steadfastdns.net
208.66.174.103	PTR	mail.tectaamerica.com
208.66.174.132	A	mail.fastroot.com
208.66.174.151	A+PTR	spam2.fastroot.com
208.66.174.151	A	b21u11spam1.fastroot.com
208.66.174.170	A	standalone.fastroot.com
208.66.174.255	PTR	ip255.208-66-174.static.steadfastdns.net
208.66.175.0	PTR	ip0.208-66-175.static.steadfastdns.net
208.66.175.36	PTR	nist1-chi.ustiming.org
208.66.175.36	A	ntp.glb.nist.gov
208.66.175.86	A+PTR	ip86.208-66-175.static.steadfastdns.net
208.66.175.135	A	mailsvr.primetime-us.com
208.66.175.136	PTR	ip136.208-66-175.static.steadfastdns.net
208.66.175.136	A	office1.thesecret.tv
208.66.175.136	A	mail.primetime-us.com
208.66.175.140	PTR	thesecret.tv
208.66.175.140	A	themagic.com
208.66.175.152	PTR	smtp.global-servers.net
208.66.175.255	PTR	ip255.208-66-175.static.steadfastdns.net