Robtex

Up: 64.17.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 64.17.0.0/21
Down right: 64.17.8.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.17.0.0	PTR	net64-17-0-0.static-customer-corenap.com
64.17.0.52	A+PTR	aus-asa-01.corenap.com
64.17.0.52	A	aus-asa-01-v14.corenap.com
64.17.0.80	PTR	net64-17-0-80.static-customer.corenap.com
64.17.0.80	A	auburn.tk20.com
64.17.0.93	A	leeward.tk20.com
64.17.0.102	A	net64-17-0-102.static-customer.corenap.com
64.17.0.102	A	www.zmansenergybrain.com
64.17.0.102	A	zmansenergybrain.com
64.17.0.122	A	remote.opushomestx.com
64.17.0.162	A+PTR	mail03.atech.com
64.17.0.167	A	spam.atech.com
64.17.0.211	A	mail.atech.com
64.17.0.221	A	noticetech.com
64.17.0.221	A	noticetechnology.com
64.17.0.221	A	noticetechnologies.net
64.17.2.2	PTR	net64-17-2-2.static-customer.corenap.com
64.17.2.61	A	net64-17-2-61.static-customer.corenap.com
64.17.2.62	A	net64-17-2-62.static-customer.corenap.com
64.17.2.74	A	advanced-enterprise-solutions.com
64.17.2.85	A	solidarray.com
64.17.2.86	A	netfoci.net
64.17.2.87	A	mail.netfoci.net
64.17.2.87	A	mail.havins.org
64.17.2.97	PTR	net64-17-2-97.static-customer.corenap.com
64.17.2.97	A	out-1.emvante.com
64.17.2.97	A	ns2.emvante.com
64.17.2.98	A+PTR	out-2.emvante.com
64.17.2.99	PTR	out-3.emvante.com
64.17.2.112	A	out-16.emvante.com
64.17.2.113	A+PTR	out-17.emvante.com
64.17.2.115	A+PTR	out-19.emvante.com
64.17.2.116	A	out-20.emvante.com
64.17.2.200	A	bd2.bulliondirect.com
64.17.2.213	A	ns1.moverotech.com
64.17.2.213	A	moverotech.com
64.17.2.214	A	imap.moverotech.com
64.17.2.228	A+PTR	mail.cmwc.com
64.17.2.228	A	mail.texassurveyor.net
64.17.2.228	A	three.cmwc.com
64.17.2.230	PTR	mail.cmwc.com
64.17.2.234	PTR	hosting234.cmwc.com
64.17.2.236	A	mail.dogskinz.com
64.17.2.240	A	hosting4.cmwc.com
64.17.2.243	A	hosting4.cmwc.com
64.17.2.244	PTR	net64-17-2-244.static-customer.corenap.com
64.17.2.244	A	mail.dogskinz.com
64.17.2.244	A	mail.atac-promotionalalliance.com
64.17.2.246	PTR	hosting246.cmwc.com
64.17.3.0	A	confnav.com
64.17.3.151	A	mail.documentengine.com
64.17.3.154	A	mail.gibson-concrete.com
64.17.3.158	A	barracuda.loyalit.net
64.17.3.176	PTR	net64-17-3-176.static-customer.corenap.com
64.17.3.176	A	innovatesmartsite.com
64.17.3.176	A	pulsesmartsite.com
64.17.3.177	A	iodcomments.com
64.17.3.180	A	www.ntag.com
64.17.3.196	A	surveys4edge.com
64.17.3.197	A	www.sagesmartsite.com
64.17.3.197	A	madeirabarandlounge.com
64.17.3.198	A	visionsmartsite.com
64.17.3.244	A	nsmmonitor.com
64.17.3.245	A	myinstaname-active.ooguy.com
64.17.3.249	A	host8c.maxxvox.com
64.17.4.18	PTR	net64-17-4-18.static-customer.corenap.com
64.17.4.20	A	teamrv-mvp.sos.texas.gov
64.17.4.114	A	uncc.tk20.com
64.17.4.132	A	email.ring7host.com
64.17.4.146	A	regioncast.com
64.17.5.1	PTR	net64-17-5-1.static-customer.corenap.com
64.17.5.11	A	smtp1b.gdsx.com
64.17.5.98	A	mwsu.tk20.com
64.17.5.130	A	astaro-corenap.borgcube.com
64.17.5.130	A	borgcube.com
64.17.5.131	A	wanguhu.org
64.17.5.132	A	houzzing.net
64.17.5.162	PTR	net64-17-5-162.static-customer.corenap.com
64.17.5.164	A	mailrelay01.compasslearning.com
64.17.5.211	PTR	net64-17-5-211.static-customer.corenap.com
64.17.5.211	A	geochain.com
64.17.5.211	A	gastracker.org
64.17.5.212	A	muellercommunity.org
64.17.5.230	A	nti.al
64.17.5.245	A	mail.mfiaustin.com
64.17.5.248	A	mail.meritagecapital.com
64.17.5.249	A	mail.wwebber.com
64.17.5.249	A	mail.scctx.com
64.17.6.20	A	focussi.com
64.17.6.30	A	mail.focussi.com
64.17.6.67	A	email.gatewaychurch.com
64.17.6.69	A	tm.gatewaychurch.com
64.17.6.101	A	whiteriverstudios.com
64.17.6.101	A	infobase.apinet.com
64.17.6.101	A	bmwdealerforum.com
64.17.6.105	A	bmwdealerforum.com
64.17.6.131	PTR	net64-17-6-131.static-customer.corenap.com
64.17.6.131	A	redcrossvc.org
64.17.6.135	A	svr1.wlion.com
64.17.6.135	A	mail.testset.net
64.17.6.135	A	email1.wlion.com
64.17.6.164	A	ekretailer.com
64.17.6.164	A	ekprinting.com
64.17.6.175	A	mail2.testset.net
64.17.6.175	A	ns2.wlion.com
64.17.6.227	PTR	net64-17-6-227.static-customer.corenap.com
64.17.6.227	A	sanguinenet.com
64.17.6.227	A	edirectorynow.com
64.17.7.36	A	oz.adwizards.com
64.17.7.90	A	esg.paymetric.com
64.17.7.177	PTR	net64-17-7-177.static-customer.corenap.com
64.17.7.205	A	jmeter.tk20.com
64.17.7.226	PTR	net64-17-7-226.static-customer.corenap.com
64.17.7.226	A	pyimmex.com.mx
64.17.7.226	A	lci-scm-solutions.com
64.17.8.12	A+PTR	vcloud-demo.corenap.com
64.17.8.13	A+PTR	vcloud-proxy.corenap.com