Robtex

Up: 66.209.64.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 66.209.64.0/24
Down right: 66.209.65.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.209.64.0	PTR	cust-66.209.64.0.switchnap.com
66.209.64.1	PTR	switch.gateway.switchnap.com
66.209.64.6	A	crystal.switchcommgroup.com
66.209.64.10	A+PTR	www.switchscribe.com
66.209.64.10	A	www.nevadanap.com
66.209.64.10	A	switchscope.com
66.209.64.18	PTR	asa-01.switchlv.com
66.209.64.18	A	pix.switchnap.com
66.209.64.18	A	pix.switchcommgroup.com
66.209.64.19	PTR	cust-66.209.64.19.switchnap.com
66.209.64.19	A	mail.switchnap.com
66.209.64.20	PTR	ns1.switchnap.com
66.209.64.20	A	v21c.org
66.209.64.20	A	sinap-tix.com
66.209.64.21	PTR	seabrook.switchnap.com
66.209.64.22	A+PTR	braidwood.switchnap.com
66.209.64.23	PTR	www.switchnap.com
66.209.64.23	A	switchprojects.com
66.209.64.23	A	switchgci3.org
66.209.64.24	PTR	email.switchlv.com
66.209.64.24	A	email.switchnap.com
66.209.64.25	PTR	magickarma.net
66.209.64.25	A	peakflow.switchnap.com
66.209.64.27	A	portal.switchnap.com
66.209.64.62	PTR	po72.las-agg7s2-2.switchnap.com
66.209.64.141	PTR	be73.las-core7-2.switchnap.com
66.209.64.226	PTR	te0-3-1-0.las-agg8s1-1.switchnap.com
66.209.64.255	PTR	cust-66.209.64.255.switchnap.com
66.209.65.15	PTR	cust-66.209.65.15.switchnap.com
66.209.65.31	PTR	cust-66.209.65.31.switchnap.com
66.209.65.32	PTR	cust-66.209.65.32.switchnap.com
66.209.65.64	PTR	cust-66.209.65.64.switchnap.com
66.209.65.66	A	websharesoftware.com
66.209.65.67	A+PTR	kvm6lv.goconference.com
66.209.65.75	PTR	cust-66.209.65.75.switchnap.com
66.209.65.85	A+PTR	smtp.aquatechpools.com
66.209.65.85	A	smtp.unitedaquagroup.com
66.209.65.85	A	smtp.aquatechsociety.com
66.209.65.87	PTR	cust-66.209.65.87.switchnap.com
66.209.65.89	PTR	cust-66.209.65.89.switchnap.com
66.209.65.89	A	aquavalue.com
66.209.65.89	A	myaquavalue.com
66.209.65.90	PTR	cust-66.209.65.90.switchnap.com
66.209.65.90	A	smtp.aquatechpools.com
66.209.65.90	A	mail.aquatechpools.com
66.209.65.92	PTR	cust-66.209.65.92.switchnap.com
66.209.65.92	A	westportpoolsservice.com
66.209.65.92	A	wmadagency.com
66.209.65.95	PTR	cust-66.209.65.95.switchnap.com
66.209.65.95	A	aquatechpools.com
66.209.65.95	A	www.aquatechpools.com
66.209.65.96	PTR	cust-66.209.65.96.switchnap.com
66.209.65.100	PTR	cust-66.209.65.100.switchnap.com
66.209.65.101	PTR	cust-66.209.65.101.switchnap.com
66.209.65.101	A	www.bwnit.com
66.209.65.101	A	www.colouredstudio.com
66.209.65.103	PTR	cust-66.209.65.103.switchnap.com
66.209.65.103	A	hpsslv.com
66.209.65.103	A	vh2303.ccsi.net
66.209.65.104	PTR	cust-66.209.65.104.switchnap.com
66.209.65.104	A	gunssavelives.info
66.209.65.104	A	jackwoodcock.com
66.209.65.107	PTR	ns3.lvnap.com
66.209.65.107	A	bwnit.com
66.209.65.108	PTR	ns4.lvnap.com
66.209.65.108	A	bwnit.com
66.209.65.110	A+PTR	smail1.ccsi.net
66.209.65.122	PTR	cust-66.209.65.122.switchnap.com
66.209.65.122	A	vh2.ccsi.net
66.209.65.122	A	vh2.lan4air.com
66.209.65.124	A+PTR	kms6.ccsi.net
66.209.65.124	A	mail.armalv.org
66.209.65.130	A	mail.bjsrestaurants.com
66.209.65.131	A	order.bjsrestaurants.com
66.209.65.132	A	pay.bjsrestaurants.com
66.209.65.132	A	bjsmobilepay.com
66.209.65.133	PTR	cust-66.209.65.133.switchnap.com
66.209.65.133	A	services.bjsrestaurants.com
66.209.65.135	A	bjsmobilepay.com
66.209.65.136	A	www.bjsorderahead.com
66.209.65.136	A	bjsorderahead.com
66.209.65.156	A	services1.bjsrestaurants.com
66.209.65.159	PTR	cust-66.209.65.159.switchnap.com
66.209.65.160	PTR	cust-66.209.65.160.switchnap.com
66.209.65.165	A	secmsg.net
66.209.65.174	A	mail.callcenterusa.net
66.209.65.182	A	bs-host02.bigskytech.com
66.209.65.191	PTR	cust-66.209.65.191.switchnap.com
66.209.65.204	A	e-touch.com
66.209.65.204	A	emenu.e-touch.com
66.209.65.210	A	system6.pos.infogenesisasp.com
66.209.65.210	A	system9.pos.infogenesisasp.com
66.209.65.210	A	system17.pos.infogenesisasp.com
66.209.65.223	PTR	cust-66.209.65.223.switchnap.com