Robtex

Up: 64.101.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 64.101.0.0/18
Down right: 64.101.64.0/18
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.101.0.69	A	smtp3.cathexisconsulting.ca
64.101.1.168	PTR	dhcp-64-101-1-168.cisco.com
64.101.32.10	A	devicehelper-stg.cisco.com
64.101.32.57	A	autodiscover.cisco.com
64.101.32.216	A	www-idmprd3.cisco.com
64.101.33.5	A+PTR	concur-test.cisco.com
64.101.37.118	A	rtp5-ucs-dcz01n-gslb1-snip.cisco.com
64.101.38.11	A+PTR	cae-xprp-rtp-vip.cisco.com
64.101.38.11	A	pochange-ariba.glb-ext.cisco.com
64.101.38.11	A	teams4office.glb-ext.cisco.com
64.101.38.86	PTR	rtp1-ucs-dcz01n-cae-gslb3-snip.cisco.com
64.101.40.1	A+PTR	hsrp-64-101-40-1.cisco.com
64.101.40.5	A	lnxdb-prf-vm-021.cisco.com
64.101.40.6	A	scan-nprd-491.cisco.com
64.101.40.7	A	scan-nprd-491.cisco.com
64.101.55.94	A+PTR	wwwin-ts1otm.cisco.com
64.101.72.1	A	hsrp-64-101-72-1.cisco.com
64.101.72.11	A	printer-den02-64-101-72-11.cisco.com
64.101.72.79	A	ps-den02-1.cisco.com
64.101.72.126	A	agallegoden.cisco.com
64.101.72.130	A	bigelow.cisco.com
64.101.72.140	A	adderley.cisco.com
64.101.72.156	A	dhcp-64-101-72-156.cisco.com
64.101.72.158	A	dhcp-64-101-72-158.cisco.com
64.101.74.12	A	wavelet389.cisco.com
64.101.74.13	A	slc-ons.cisco.com
64.101.74.34	A	printer-xrx-wcp-101c.cisco.com
64.101.74.38	A	slc-polycom.cisco.com
64.101.117.27	A	downloads-auth2.linksys.com
64.101.117.35	A	www-auth2.linksys.com
64.101.122.3	PTR	irv6-wl-gw1-vla252.cisco.com