Robtex

Up: 66.180.96.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 66.180.96.0/24
Down right: 66.180.97.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.180.96.6	A	csr00-v500-1.dllstx97.cbeyond.net
66.180.96.7	A+PTR	2007oab.cbeyondonline.net
66.180.96.7	PTR	oab.cbeyondonline.net
66.180.96.10	A+PTR	internal.dal0.cbeyond.net
66.180.96.11	A+PTR	66-180-96-11.customerip.birch.net
66.180.96.11	A	*.goldenlox.com
66.180.96.11	A	mail.goldenlox.com
66.180.96.12	A+PTR	dns.dal.cbeyond.com
66.180.96.12	PTR	66-180-96-12.customerip.birch.net
66.180.96.12	A	ssarlington.com
66.180.96.14	A+PTR	vr-dal.cbeyondonline.net
66.180.96.19	A+PTR	voicemail.cbeyondvoicemail.net
66.180.96.19	A	cbeyondvoicemail.net
66.180.96.19	A	cbeyondvm.com
66.180.96.20	A+PTR	phones-test.inf.cbeyond.net
66.180.96.21	A	phones.gtm.cbeyond.net
66.180.96.23	A	cmail.vacek.com
66.180.96.25	A+PTR	softphone-fca.inf.cbeyond.net
66.180.96.27	PTR	mx1.cbeyond.com
66.180.96.27	PTR	66-180-96-27.customerip.birch.net
66.180.96.27	A	mail.mrspt.com
66.180.96.28	A	sipconnect.cbeyondonline.com
66.180.96.29	PTR	smtp.atl.cbeyond.com
66.180.96.29	A	mail2.clearwater-construction.com
66.180.96.31	PTR	sso-devtest.cbeyond.net
66.180.96.32	A+PTR	vpsportal-test.inf.cbeyond.net
66.180.96.32	A	mail.chapelcollins.com
66.180.96.32	A	mail.markodoor.com
66.180.96.33	PTR	2007webmail.cbeyondonline.net
66.180.96.34	A	2007autodiscover.cbeyondonline.net
66.180.96.35	A+PTR	pca-dal.cbeyondonline.net
66.180.96.35	A	pca.cbeyondonline.net
66.180.96.41	A	sbprovtest.cbeyond.net
66.180.96.45	A+PTR	mobile-uat.cbeyondonline.net
66.180.96.50	A+PTR	nas00dal.dal0.cbeyond.net
66.180.96.50	A+PTR	needforspeed.dal0.cbeyond.net
66.180.96.56	PTR	mail.east.cbeyond.com
66.180.96.56	A	mail.dellwoodtire.com
66.180.96.56	A	mail.lordsnet.com
66.180.96.57	PTR	mail.west.cbeyond.com
66.180.96.57	A	mail.mvcdc.net
66.180.96.58	A+PTR	mx.cbeyond.com
66.180.96.64	A+PTR	madmin.cbeyond.net
66.180.96.68	A	lab-rg300.cbeyond.net
66.180.96.69	PTR	jaygeewood.com
66.180.96.70	A	mlab00.cbeyond.net
66.180.96.77	A+PTR	ws2-fca.dal0.cbeyond.net
66.180.96.77	A	portal-fca.sipconnect.cbeyond.net
66.180.96.79	A	bsimple-test.cbeyond.net
66.180.96.79	A	csr-test.cbeyondonline.net
66.180.96.81	A+PTR	stellentimaging.cbeyond.net
66.180.96.82	A	atomic.cbeyond.net
66.180.96.85	A	middleware-dev.cbeyond.net
66.180.96.88	A+PTR	cbo-extproxy.cbeyond.net
66.180.96.88	A+PTR	cbosso-test.cbeyond.net
66.180.96.90	A+PTR	vru00-lo2.dllstx97.cbeyond.net
66.180.96.92	A+PTR	stellentimaging-test.cbeyond.net
66.180.96.93	A	outlookinstaller-dal.cbeyond.net
66.180.96.114	PTR	fileboxseattle.com
66.180.96.114	A+PTR	66-180-96-114.customerip.birch.net
66.180.96.115	PTR	fileboxseattle.com
66.180.96.115	A+PTR	66-180-96-115.customerip.birch.net