Robtex

Up: 64.99.56.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 64.99.60.0/23
Down right: 64.99.62.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
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	A+PTR	easyspace.opensrs.net
64.99.60.13	A	transfers.easyspace.com
64.99.60.13	A	whois.easyspace.com
64.99.60.14	PTR	tradeindia.opensrs.net
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
64.99.60.20	A	gpdomains.com
64.99.60.20	A	moxymedia.opensrs.net
64.99.60.20	A	www.gpdomains.com
64.99.60.21	PTR	iregister.opensrs.net
64.99.60.22	PTR	inetters.opensrs.net
64.99.60.24	A+PTR	fastwebserver.opensrs.net
64.99.60.25	A+PTR	tendollarca.opensrs.net
64.99.60.26	PTR	indiatimes.opensrs.net
64.99.60.27	A+PTR	registerca.opensrs.net
64.99.60.29	PTR	nameadmin.opensrs.net
64.99.60.30	A+PTR	names4ever.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
64.99.60.37	A	easyspaceprivacy.com
64.99.60.38	PTR	internettersprivacy.opensrs.net
64.99.60.38	A	www.internettersprivacy.com
64.99.60.38	A	internettersprivacy.com
64.99.60.41	A+PTR	funio.opensrs.net
64.99.60.41	A	funio.registrarmail.net
64.99.60.42	A+PTR	myprivacy.net
64.99.60.42	A	www.myprivacy.net
64.99.60.43	PTR	softlayerdomainsprivacy.opensrs.net
64.99.60.44	PTR	softlayerdomainsprivacy.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	A+PTR	interplanet.opensrs.net
64.99.63.20	A	whois.suempresa.com
64.99.63.20	A	privacycontact.com.mx
64.99.63.22	A+PTR	hostpapa.opensrs.net
64.99.63.26	A+PTR	aruba.opensrs.net
64.99.63.27	A+PTR	wordpress.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