Robtex

Up: 66.210.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 66.210.52.0/23
Down right: 66.210.54.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.210.52.21	PTR	wsip-66-210-52-21.oc.oc.cox.net
66.210.52.30	PTR	wittsinn.com
66.210.52.42	PTR	wsip-66-210-52-42.oc.oc.cox.net
66.210.52.42	A	www.gnpweb.com
66.210.52.42	A	*.gnpweb.com
66.210.52.48	A	mail.nautilushmg.com
66.210.52.49	PTR	wsip-66-210-52-49.oc.oc.cox.net
66.210.52.49	A	accessgnp.com
66.210.52.49	A	www.accessgnp.com
66.210.52.51	PTR	wsip-66-210-52-51.oc.oc.cox.net
66.210.52.52	A	mail2.nautilushmg.com
66.210.52.134	A+PTR	mail.schraff.com
66.210.52.134	A	smtp.classactionlawsuitjournal.com
66.210.52.134	A	mail.foothillcanyons.com
66.210.52.139	A	bullycouncil.com
66.210.52.139	A	lawyermarketingforce.com
66.210.52.200	PTR	wsip-66-210-52-200.oc.oc.cox.net
66.210.52.200	A	mail.fieldcentrix.com
66.210.52.222	A	phone.fieldcentrix.com
66.210.54.5	A	mail.hwra.org
66.210.54.5	A	mail.calcomm.org
66.210.54.50	PTR	mail.harcourtsprime.com
66.210.54.50	A	mail.harcourtsnv1.com
66.210.54.50	A	mail.primeescrow.net
66.210.54.56	A	mail2.harcourtsprime.com
66.210.54.56	A	mail.tlogic.net
66.210.54.56	A	mail.harcourtsprime.com
66.210.54.60	A	taylorescrow.com
66.210.54.62	PTR	wsip-66-210-54-62.oc.oc.cox.net
66.210.54.62	A	taylorescrow.com
66.210.54.62	A	philgunther.com
66.210.54.108	A	banningranchgis.com
66.210.54.139	PTR	wsip-66-210-54-139.oc.oc.cox.net
66.210.54.139	A	www.intelligentairwave.com
66.210.54.139	A	mail.parchmentimpressions.com
66.210.54.152	PTR	wsip-66-210-54-152.oc.oc.cox.net
66.210.54.152	A	mx1.cathyjeanshoes.com
66.210.54.195	A+PTR	ns03.alteryx.com
66.210.54.253	A	omgiftshop.com
66.210.54.253	A	realbeefmusicgroup.org
66.210.54.253	A	usakenyanmusicians.com
66.210.55.51	PTR	wsip-66-210-55-51.oc.oc.cox.net
66.210.55.51	A	cgcomm.com
66.210.55.51	A	mail.cgcomm.com
66.210.55.67	PTR	wsip-66-210-55-67.oc.oc.cox.net
66.210.55.67	A	internationalcardestablishment.com
66.210.55.67	A	neosmerchant.net
66.210.55.71	PTR	wsip-66-210-55-71.oc.oc.cox.net
66.210.55.71	A	liftfb.com
66.210.55.72	A	liftmysales.com
66.210.55.73	PTR	wsip-66-210-55-73.oc.oc.cox.net
66.210.55.73	A	mail.fanconnect.biz
66.210.55.75	PTR	wsip-66-210-55-75.oc.oc.cox.net
66.210.55.75	A	allinpokertourney.com
66.210.55.75	A	ocpinball.net
66.210.55.82	A	admin.smaa.org
66.210.55.85	A	mail.smaa.org
66.210.55.132	A	mail.kdtien.com
66.210.55.132	A	mail.unisap.com
66.210.55.136	PTR	avocado.org
66.210.55.137	PTR	avocado.org
66.210.55.139	PTR	avocado.org
66.210.55.140	PTR	avocado.org
66.210.55.141	PTR	avocado.org
66.210.55.142	PTR	avocado.org
66.210.55.143	PTR	avocado.org
66.210.55.144	PTR	avocado.org
66.210.55.146	PTR	wsip-66-210-55-146.oc.oc.cox.net
66.210.55.146	A	mail.greenstreetadvisors.biz
66.210.55.146	A	mail.greenst.biz
66.210.55.195	A	ajhood.com
66.210.55.195	A	complaintstaffing.com
66.210.55.202	A	mail.calljensen.com
66.210.55.203	A	gw.calljensen.com
66.210.55.205	A	calljensen.com
66.210.55.213	PTR	wsip-66-210-55-213.oc.oc.cox.net
66.210.55.214	A	mail.purechipinc.com
66.210.55.250	A+PTR	mail.hoa-insurance.com