Robtex

Up: 66.210.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 66.210.248.0/22
Down right: 66.210.252.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.210.248.72	A+PTR	mr4.tgen.org
66.210.248.72	A	mr.tgen.org
66.210.248.75	A+PTR	tgen-m1.tgen.org
66.210.248.84	A	tgen-foundation.org
66.210.248.84	A	kirstenslegacy.net
66.210.248.84	A	tgen-foundation.us
66.210.248.90	PTR	wsip-66-210-248-90.ph.ph.cox.net
66.210.248.90	A	tgennorth.com
66.210.248.90	A	translationalgenomics.com
66.210.248.98	PTR	www.intgen.org
66.210.248.99	PTR	ft.molecularprofiling.com
66.210.248.99	A	tgennorth.org
66.210.248.105	PTR	wsip-66-210-248-105.ph.ph.cox.net
66.210.248.105	A	smtp.socialome.com
66.210.248.111	A	curemsanow.org
66.210.248.111	A	c4rcd.com
66.210.248.111	A	bio4d.info
66.210.248.112	PTR	mr3.tgen.org
66.210.248.212	A	mail2.propertyperformers.com
66.210.248.212	A	mail.propertyperformers.com
66.210.248.212	A	propertyperformers.com
66.210.248.216	A	marleyking.com
66.210.248.219	A	offsitebackupco.com
66.210.249.51	PTR	email.gorenter.com
66.210.249.158	A	sahuarita.speedtest.bluespan.com
66.210.250.50	PTR	mail.3dex.com
66.210.250.61	A	mail.mobilenonprofit.com
66.210.250.61	A	mail.mobilerelationship.com
66.210.250.61	A	mail.relationshipmobile.com
66.210.250.80	PTR	mail.celltrust.com
66.210.250.86	A	mail.moonlight.com
66.210.250.86	A	mail.revmobile.com
66.210.250.86	A	mail.primemessage.com
66.210.250.102	A	mail.shojaee.net
66.210.250.112	PTR	bizcard.com
66.210.250.119	A	www.moonlight.com
66.210.250.119	A	wsip-66-210-250-119.ph.ph.cox.net
66.210.250.119	A	bellasirena.net
66.210.251.34	PTR	gle-gate.bechtel.com
66.210.251.51	PTR	gle-gate.bechtel.com
66.210.251.51	A	ns2.featherstonmedia.com
66.210.251.136	A	mail.direct-mkt.com
66.210.251.178	A+PTR	wsip-66-210-251-178.ph.ph.cox.net
66.210.255.255	A	wsip-66-210-255-255.ph.ph.cox.net