Robtex

Up: 64.99.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 64.99.48.0/21
Down right: 64.99.56.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.99.49.64	A+PTR	registerca.registrarmail.net
64.99.49.80	A+PTR	tradeindia.registrarmail.net
64.99.49.88	A	tendollarca.registrarmail.net
64.99.49.94	A	switchmedia.registrarmail.net
64.99.51.31	A	yummienames.com
64.99.51.31	A	opensrs.tv
64.99.51.31	A	yummynames.biz
64.99.51.32	A+PTR	ssl-certificate.info
64.99.51.33	PTR	referrals.tucwos.com
64.99.51.33	A	referrals.tucows.com
64.99.51.41	PTR	www.tucowsdomains.com
64.99.51.41	A	www.tucows.us
64.99.51.41	A	domainhelp.opensrs.net
64.99.51.42	PTR	opensrs.com
64.99.51.70	A	bri.works
64.99.51.70	A	www.bri.works
64.99.51.71	A	www.cvillehosting.com
64.99.51.71	A	www.cvillehosting.net
64.99.51.91	A	www.domainhelp.tucows.com
64.99.51.91	A	domainhelp.tucows.com
64.99.53.64	A+PTR	endurance.opensrs.net
64.99.53.64	A	whois.domain.com
64.99.53.64	A	endurance.registrarmail.net
64.99.53.65	PTR	domainprivacygroup.com
64.99.53.65	A	www.domainprivacygroup.com
64.99.53.70	PTR	endurance.registrarmail.net
64.99.58.10	A	limitedsports.com
64.99.58.10	A	*.mp3-charts.com
64.99.58.10	A	zf7.com
64.99.60.10	A+PTR	kpnims.opensrs.net
64.99.60.11	A+PTR	kpncm.opensrs.net
64.99.60.12	A+PTR	kpnkio.opensrs.net
64.99.60.13	PTR	easyspace.opensrs.net
64.99.60.13	A	transfers.easyspace.com
64.99.60.16	A+PTR	easydns.opensrs.net
64.99.60.17	A+PTR	ev1.opensrs.net
64.99.60.17	A	randy-maugans.randy-maugans-malware-purveyor.ilikeyoungboys.com.gayboystube.com.andymdn.com.hackermind.info.dsw.ca.1748.com.resellone.net
64.99.60.17	A	*.resellone.net
64.99.60.18	PTR	tpp.opensrs.net
64.99.60.19	PTR	theplanet.opensrs.net
64.99.60.32	A+PTR	ride.opensrs.net
64.99.60.32	A	whois.domain-banban.com
64.99.60.32	A	domain-banban.com
64.99.60.37	PTR	easyspaceprivacy.opensrs.net
64.99.60.37	A	www.easyspaceprivacy.com
64.99.60.38	PTR	internettersprivacy.opensrs.net
64.99.60.213	A	approve.easyspace.com
64.99.62.11	A+PTR	whois.opensrs.net
64.99.62.11	A	whois.big-dns.com
64.99.62.35	A+PTR	contactprivacy.email
64.99.62.35	A	www.contactprivacy.email
64.99.62.47	A	tieredaccess.com
64.99.63.12	A+PTR	papaki.opensrs.net
64.99.63.12	A	whois.papaki.gr
64.99.63.14	A	admin.mindsandmachines.com
64.99.63.15	A+PTR	paragon.opensrs.net
64.99.63.17	A	www.privatedata.domains
64.99.63.17	A	privatedata.domains
64.99.63.18	PTR	wildcard.mm-privacy.com
64.99.63.18	A	mm-privacy.com
64.99.63.19	A+PTR	authenticweb.opensrs.net
64.99.63.20	PTR	interplanet.opensrs.net
64.99.63.32	A	domwhois.arcticnames.com
64.99.63.33	A+PTR	wix.opensrs.net
64.99.63.33	A	approve.wix.com
64.99.63.33	A	transfers.wix.com