Robtex

Up: 64.68.32.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 64.68.32.0/25
Down right: 64.68.32.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.68.32.2	PTR	dc-1.advancedaccess.com
64.68.32.9	PTR	legacyweb4a.advancedaccess.com
64.68.32.9	A	barbaracox.com
64.68.32.9	A	bobbytarango.com
64.68.32.16	PTR	netapp.advancedaccess.com
64.68.32.21	PTR	ds-ns1.advancedaccess.com
64.68.32.21	A	wesellhomes2you.com
64.68.32.21	A	ds-ns1.core.advancedaccess.com
64.68.32.22	A	ns2.advancedaccess.com
64.68.32.22	A	*.iamtoodumbtosetupdns.22.32.68.64.hitfarm.com
64.68.32.22	A	annaglick.com
64.68.32.30	A+PTR	filelib.advancedaccess.com
64.68.32.33	A	forms.advancedaccess.com
64.68.32.34	A	vclient.advancedaccess.com
64.68.32.35	A	crm.advancedaccess.com
64.68.32.36	A	crm.advancedaccess.com
64.68.32.40	PTR	classicpackage.advancedaccess.com
64.68.32.40	PTR	dsweb.advancedaccess.com
64.68.32.40	A	annaglick.com
64.68.32.43	A+PTR	dsadmin.advancedaccess.com
64.68.32.43	A	intellicardsplus.net
64.68.32.43	A	admin.classicpackage.advancedaccess.com
64.68.32.45	PTR	images1.advancedaccess.com
64.68.32.49	PTR	advancedaccess.com
64.68.32.49	A+PTR	blogs.advancedaccess.com
64.68.32.49	A+PTR	f5.advancedaccess.com
64.68.32.50	A+PTR	monitor.advancedaccess.com
64.68.32.50	PTR	security.advancedaccess.com
64.68.32.52	A	graphics-1.advancedaccess.com
64.68.32.57	PTR	webmail.advancedaccess.com
64.68.32.59	A+PTR	sql-dist-7.core.advancedaccess.com
64.68.32.59	A	sql-dist-4.core.advancedaccess.com
64.68.32.59	A	sql-stats-1.advancedaccess.com
64.68.32.60	PTR	mailsite.advancedaccess.com
64.68.32.60	PTR	pop.advancedaccess.com
64.68.32.71	A	katabat-relay.mail.advancedaccess.com
64.68.32.72	A	katabat-relay.mail.advancedaccess.com
64.68.32.86	A	ns2.core.advancedaccess.com
64.68.32.101	A	angiecummings.com
64.68.32.101	A	findinghome4u.com
64.68.32.101	A	web2.advancedaccess.com
64.68.32.105	A+PTR	web5.advancedaccess.com
64.68.32.105	PTR	legacyweb2.core.advancedaccess.com
64.68.32.105	A	prescottpinesrealty.com
64.68.32.106	A+PTR	web6.advancedaccess.com
64.68.32.107	A+PTR	web7.advancedaccess.com
64.68.32.107	PTR	legacyweb3.core.advancedaccess.com
64.68.32.107	A	propertyassistant.com
64.68.32.109	PTR	web9.advancedaccess.com
64.68.32.109	A+PTR	legacyweb.core.advancedaccess.com
64.68.32.109	A	homeinformationcenter.com
64.68.32.111	PTR	legacyweb4.advancedaccess.com
64.68.32.111	PTR	legacyweb4.core.advancedaccess.com
64.68.32.111	A	realestate4panamacity.com
64.68.32.113	PTR	customer-filter-4.mail.advancedaccess.com
64.68.32.114	A	robindeluca.com
64.68.32.114	A	homeloanabc.com
64.68.32.115	PTR	customer-filter-3.mail.advancedaccess.com
64.68.32.118	A+PTR	smtp-primary.advancedaccess.com
64.68.32.118	A	customer-filter-2.mail.advancedaccess.com
64.68.32.118	A	customer-filter-3.mail.advancedaccess.com
64.68.32.121	A+PTR	mailsite-internal.advancedaccess.com
64.68.32.121	A+PTR	pop.advancedaccess.com
64.68.32.121	A+PTR	smtp.advancedaccess.com
64.68.32.128	A	ds4sitegen.advancedaccess.com
64.68.32.128	A	ds4admin.advancedaccess.com
64.68.32.128	A	luckett85.com
64.68.32.135	A+PTR	icadmin.advancedaccess.com
64.68.32.135	A+PTR	icimages.advancedaccess.com
64.68.32.135	PTR	icsignup.advancedaccess.com
64.68.32.157	A	exchange-filter-3.mail.advancedaccess.com
64.68.32.157	A	exchange-filter-1.mail.advancedaccess.com
64.68.32.157	A	customer-filter-1.mail.advancedaccess.com
64.68.32.161	A	mailhub-quickhomes.advancedaccess.com
64.68.32.161	A	mailhub-slow.advancedaccess.com
64.68.32.161	A	mailhub-customerclient.advancedaccess.com
64.68.32.166	A+PTR	exchangelistener-4.advancedaccess.com
64.68.32.166	A+PTR	exchangelistener-4.mail.advancedaccess.com
64.68.32.166	A	exchange-filter-2.mail.advancedaccess.com
64.68.32.168	PTR	exchange-filter-2.mail.advancedaccess.com
64.68.32.169	PTR	exchange-filter.mail.advancedaccess.com
64.68.32.169	PTR	exchange-filter-1.mail.advancedaccess.com
64.68.32.177	A	oldsites.core.advancedaccess.com
64.68.32.190	PTR	ic-1.advancedaccess.com
64.68.32.190	A	intellicards.net
64.68.32.190	A	www.intellicards.net
64.68.32.194	A	virtualcenter.core.advancedaccess.com
64.68.32.201	PTR	dev-irvine-2.core.advancedaccess.com
64.68.32.201	A	fayegaskins.com
64.68.32.201	A	napahomesforsale.com
64.68.32.208	A	dns-2.core.advancedaccess.com
64.68.32.213	A	idx-push.advancedaccess.com
64.68.32.214	A	idx-push.advancedaccess.com
64.68.32.220	A+PTR	idx.advancedaccess.com
64.68.32.221	A	idx-1.advancedaccess.com
64.68.32.225	A	olap-1.core.advancedaccess.com
64.68.32.240	A	util-3.core.advancedaccess.com
64.68.32.246	A	util-6.core.advancedaccess.com
64.68.32.251	A	esx-7.core.advancedaccess.com
64.68.32.253	PTR	ns3.core.advancedaccess.com