Robtex

Up: 64.8.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 64.8.64.0/20
Down right: 64.8.80.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.8.64.4	A	relay1.cxtec.com
64.8.64.5	A	helpdumpthehump.org
64.8.64.5	A	recoverexpress.com
64.8.64.5	A	cxtech.net
64.8.64.60	A	relay5.cxtec.com
64.8.64.60	A	relay5.teracai.com
64.8.64.60	A	relay5.wgpfoundation.org
64.8.64.88	A	outweb07.cxtec.com
64.8.64.99	A+PTR	cx1.cxtec.com
64.8.64.100	A+PTR	cx0.cablexpress.com
64.8.64.144	A	relay.teracai.com
64.8.64.173	A	lyncedge.cxtec.com
64.8.64.189	A	atlantixsystems.com
64.8.64.189	A	atlantixsystems.org
64.8.64.189	A	www.teracai.com
64.8.64.239	A	tec.cxtec.com
64.8.64.239	A	ns1.tec.cxtec.com
64.8.65.4	A	isa2.ccs.edu
64.8.65.191	A	fusion360media.com
64.8.68.6	PTR	mail.xpresscredit.net
64.8.68.39	PTR	awc.hancocklaw.com
64.8.68.135	PTR	smtp.hoacny.com
64.8.69.103	A	standingstonerecords.com
64.8.69.105	A	uticatrifire.com
64.8.69.105	A	dunkirkexcelsior.com
64.8.69.109	A	ecrhvac.com
64.8.69.134	PTR	mail.ucp-utica.org
64.8.69.137	PTR	sf.upstatecp.org
64.8.69.167	PTR	mail.ccharityom.org
64.8.69.168	PTR	mail.upstatecp.org
64.8.69.172	A	thirstyowlwinecompany.com
64.8.70.10	PTR	web.garnish.synacor.com
64.8.70.11	PTR	solutions.synacor.net
64.8.70.11	A	cookieshield.net
64.8.70.12	PTR	static.garnish.synacor.com
64.8.70.16	A	authentication.charter.net
64.8.70.16	A	authentication.charter.net.ent.syn-alias.com
64.8.70.17	A	authorize.suddenlink.net.ent.syn-alias.com
64.8.70.32	A+PTR	identity1.dishnetwork.com.ent.syn-alias.com
64.8.70.33	A+PTR	auth.mybendbroadband.com.ent.syn-alias.com
64.8.70.33	A	auth.mybendbroadband.com
64.8.70.34	A	websso-promo.synacor.net
64.8.70.35	PTR	auth.centurylink.net.ent.syn-alias.com
64.8.70.66	A+PTR	ns1.synacor.com
64.8.70.66	A	ns3.synacor.com
64.8.70.66	A	ns1.embarq.synacor.com
64.8.70.67	PTR	ns2.synacor.com
64.8.70.101	A+PTR	web.synacor.com
64.8.70.101	A	mail.chek.com
64.8.70.101	A	mail.mybudweiser.com
64.8.70.102	PTR	webportal.synacor.com
64.8.70.103	PTR	mail.tds.syn-alias.com
64.8.70.128	A	smtp.synacor.com
64.8.70.130	A	imap.synacor.com
64.8.70.131	A	dish-proxy.auth-gateway.net
64.8.70.132	A+PTR	toshiba.synacor.com
64.8.70.160	A	sp.synacor.net
64.8.70.171	PTR	web.uat05.garnet.synacor.com
64.8.70.187	A	bridge-auth-gateway-net.cmh.syn-api.com
64.8.70.191	A	ripdepot.synacor.com
64.8.70.192	PTR	secure.metrocast.garnet.synacor.com
64.8.70.192	A	secure.metrocast.net
64.8.70.196	A	mediacomtoday.com
64.8.70.196	A	*.mediacomtoday.com
64.8.70.196	A	www.mediacomtoday.com
64.8.70.201	PTR	web-build.synacor.com
64.8.70.227	A	uat03-web.synacor.com
64.8.70.228	A+PTR	uat03-portal.synacor.com
64.8.70.235	A	admin.synacor.com
64.8.70.244	A	secure.windstream.net
64.8.71.5	PTR	uat.my.synacor.com
64.8.71.5	PTR	uat.synapps.synacor.com
64.8.71.10	A	tarpit.synacor.com
64.8.71.14	A	mail.citecorp.net
64.8.71.14	A	mail.bloomington.in.us
64.8.71.14	A	mail.keynet.net
64.8.71.43	A	login.wildblue.net
64.8.71.43	A	login.wildblue.net.portal.syn-alias.com
64.8.71.58	A	login.directv.net.portal.syn-alias.com
64.8.71.70	A	authorize.myhughesnet.com.ent.syn-alias.com
64.8.71.70	A	authorize.myhughesnet.com
64.8.71.72	A	identity.sling.com
64.8.71.72	A	identity.sling.com.ent.syn-alias.com
64.8.71.100	A	webmail.mlb.com
64.8.71.106	A	imap.zoominternet.net
64.8.71.106	A	mail.zoominternet.syn-alias.com
64.8.71.111	PTR	mx.wowway.com
64.8.71.111	A	mx.knology.net
64.8.71.143	PTR	static.uat21.diamond.synacor.com
64.8.71.147	A	web.uat04.garnet.synacor.com
64.8.71.230	A+PTR	secure-my.wavebroadband.com.portal.syn-alias.com
64.8.71.230	A	secure-my.wavebroadband.com
64.8.71.236	A	demo.synacor.com
64.8.71.237	A	static.sapphire.synacor.com
64.8.73.21	A	coldfrontdist.net
64.8.73.21	A	coldfrontdist.com
64.8.73.21	A	www.coldfrontdist.com
64.8.73.33	PTR	eaglesupplyco.com
64.8.73.33	PTR	www.eaglesupplyco.com
64.8.73.33	PTR	www.empirecompanies.com
64.8.73.40	A	empirelivestock.com
64.8.73.40	A	www.empirelivestock.com
64.8.73.46	A	www.empireagrisystems.com
64.8.73.50	A	dl-mail.diarylea.com
64.8.73.92	A	www.dairylea.com
64.8.73.92	A	dfamilkne.com
64.8.73.92	A	dairylea.com
64.8.73.98	A	dl-gateway.eaglesupplyco.com
64.8.73.98	A	dl-gateway.eaglefleetdirect.com
64.8.73.98	A	dl-gateway.empireagrisystems.com
64.8.73.99	A	email.empireagrisystems.com
64.8.73.102	PTR	dietur.dairydataprocessing.com
64.8.73.234	A	dl-gateway.dairylea.com
64.8.73.234	A	dl-gateway.dairydataprocessing.net
64.8.73.235	A	dl-gateway.dairylea.com
64.8.73.235	A	dl-gateway.dairydataprocessing.net
64.8.73.236	A	dl-gateway.dairylea.com
64.8.73.236	A	dl-gateway.dairydataprocessing.net
64.8.73.237	A	dl-gateway.dairylea.com
64.8.73.237	A	dl-gateway.dairydataprocessing.net
64.8.73.238	A	dl-gateway.dairylea.com
64.8.73.238	A	dl-gateway.dairydataprocessing.net
64.8.73.239	A	dl-gateway.dairylea.com
64.8.73.239	A	dl-gateway.dairydataprocessing.net
64.8.73.243	A	brittonfield.com
64.8.73.254	A	dl-gfi.agservagency.com
64.8.75.6	PTR	smtp01.tmghealth.com
64.8.75.7	A	ns-1.tmghealth.com
64.8.75.28	A	zixvpm01.tmghealth.com
64.8.75.29	A	zixvpm02.tmghealth.com
64.8.75.34	PTR	selcva.org
64.8.76.10	A	ns1.kcnet.org
64.8.76.11	A	ns2.kcnet.org
64.8.76.12	A	elk.kcnet.org
64.8.76.19	A	fbsd.kcnet.org
64.8.76.36	PTR	river.pvmed.com
64.8.76.82	PTR	kronos1.kcnet.org
64.8.76.83	A	web.kcnet.org
64.8.76.102	PTR	mail.crwlaw.net
64.8.76.193	PTR	net-add.kcnet.org
64.8.79.33	PTR	kcnettnt01-79-033.kcnet.org
64.8.80.25	A	eng1.telcove.net
64.8.80.26	A	netstat1.telcove.net
64.8.80.27	A	netstat2.telcove.net
64.8.80.75	A+PTR	majordomo.telcove.net
64.8.83.250	PTR	netservice.twpusc.org
64.8.89.1	PTR	mail.syntec.carlisle.com
64.8.89.2	PTR	mail.syntec.carlisle.com
64.8.89.3	PTR	mail.syntec.carlisle.com
64.8.89.4	PTR	mail.syntec.carlisle.com
64.8.89.12	A	mailinsulfoam.com
64.8.89.12	A	mail.mailinsulfoam.com
64.8.89.13	A	ductsense.com
64.8.89.13	A	carlislenvelop.com
64.8.89.32	PTR	mail.syntec.carlisle.com
64.8.89.33	PTR	mail.syntec.carlisle.com
64.8.89.34	PTR	mail.syntec.carlisle.com
64.8.89.35	PTR	mail.syntec.carlisle.com
64.8.89.37	A	www.carlislehvac.com
64.8.89.39	A	www.versico.com
64.8.89.39	A	carlislesyntec.com
64.8.89.39	A	ccmapp.com
64.8.89.64	PTR	mail.syntec.carlisle.com
64.8.89.132	PTR	exchange.mhyork.org
64.8.89.133	PTR	zixvpm.mhyork.org
64.8.89.163	PTR	mail.firstcapitalfcu.com
64.8.89.163	A+PTR	mail.firstcapitalfcu.org
64.8.89.230	A	xmail2.mfps.com
64.8.89.231	A	exch.mfps.com
64.8.90.74	A	dltmail.deltahealthtech.com
64.8.90.144	PTR	webmail.lrkimball.com
64.8.90.218	PTR	mail.charlescolehospital.com
64.8.91.2	PTR	ns1.ncentral.com
64.8.91.3	PTR	ns2.ncentral.com
64.8.91.12	A	tc2ha1.ncentral.com
64.8.91.14	A	rout45.ncentral.com
64.8.91.15	A	packet.ncentral.com
64.8.91.19	A	tc1.ncentral.com
64.8.91.100	A+PTR	elkcama.ncentral.com
64.8.91.101	A	clearfieldcama.ncentral.com
64.8.91.107	A	tc3.ncentral.com
64.8.91.108	A	nmc3.ncentral.com
64.8.91.196	PTR	64-8-91-196.com
64.8.93.16	A	93-16.ncentral.com
64.8.93.35	A	93-35.ncentral.com
64.8.93.64	PTR	93-64.ncentral.com
64.8.94.109	A	94-109.ncentral.com
64.8.94.171	A+PTR	94-171.ncentral.com
64.8.95.101	PTR	64-8-95-101.ncentral.com
64.8.95.201	PTR	64-8-95-201.ncentral.com