Robtex

Up: 66.0.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 66.1.0.0/17
Down right: 66.1.128.0/17

IP	Type	Hostname
66.1.1.7	A	nsvip.tacmwar12.spcsdns.net
66.1.1.231	A	newsalesnote.com
66.1.1.231	A	rssgalaxy.net
66.1.5.7	A+PTR	nsvip.sttlwa.spcsdns.net
66.1.5.150	A	collinshome.com
66.1.5.198	A	ns1.jimmullen.com
66.1.7.152	A	searchindia.org
66.1.9.7	PTR	nsvip.snjcaar07.spcsdns.net
66.1.12.13	A	cpe-66-1-12-13.il.sprintbbd.net
66.1.12.129	A	cpe-66-1-12-129.il.sprintbbd.net
66.1.12.130	A	cpe-66-1-12-130.il.sprintbbd.net
66.1.12.131	A	cpe-66-1-12-131.il.sprintbbd.net
66.1.13.7	A	nsvip.chynwyar12.spcsdns.net
66.1.16.132	A	ns1.stknca.spcsdns.net
66.1.17.7	A	nsvip.stknca.spcsdns.net
66.1.18.118	A	punkorcrunk.com
66.1.21.7	A+PTR	nsvip.stplmn.spcsdns.net
66.1.25.7	A+PTR	nsvip.englco.spcsdns.net
66.1.28.132	PTR	ns1.omahne.spcsdns.net
66.1.29.7	A	nsvip.omahne.spcsdns.net
66.1.33.7	PTR	nsvip.akronohar05.spcsdns.net
66.1.36.132	PTR	ns1.buffny.spcsdns.net
66.1.61.7	PTR	nsvip.anaheim.spcsdns.net
66.1.62.35	A	mail.pkpd.net
66.1.65.7	A+PTR	nsvip.miamflar03.spcsdns.net
66.1.68.174	A	neuronartus.com
66.1.73.7	A	nsvip.bymnpra.spcsdns.net
66.1.76.132	A	ns1.hstntxar04.spcsdns.net
66.1.77.7	A+PTR	nsvip.hstntxar04.spcsdns.net
66.1.80.132	A+PTR	ns1.nsvltn.spcsdns.net
66.1.80.133	PTR	ns2.nsvltn.spcsdns.net
66.1.113.7	A+PTR	nsvip.frfxsc.spcsdns.net
66.1.113.20	A	diamondwholesaledirect.net
66.1.116.132	A+PTR	ns1.washdc.spcsdns.net
66.1.116.133	A	ns2.washdc.spcsdns.net
66.1.117.7	A+PTR	nsvip.washdc.spcsdns.net
66.1.120.132	A	ns1.spfdmaar01.spcsdns.net
66.1.125.7	A+PTR	nsvip.nycmar01.spcsdns.net
66.1.130.232	A	innertext.com
66.1.130.232	A	home.innertext.com
66.1.155.197	A	mail.solderquick.com
66.1.159.45	A	flydreams.com
66.1.181.128	A	clearcontact.com
66.1.181.128	A	www.clearcontact.com
66.1.208.6	A+PTR	smtp1a.mo.sprintpcs.com
66.1.208.9	A+PTR	smtp2a.mo.sprintpcs.com
66.1.208.12	A+PTR	smtp3a.mo.sprintpcs.com
66.1.208.13	A+PTR	smtp4a.mo.sprintpcs.com
66.1.236.53	A	mail.farmexinc.com
66.1.236.53	A	mail.farmexecorp.com
66.1.237.169	A	mail2.f1-enterprises.net
66.1.237.169	A	mail.f1-enterprises.net
66.1.237.170	A	f1-enterprises.net