Robtex

Up: 208.83.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 208.83.72.0/23
Down right: 208.83.74.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.83.72.41	PTR	fl-41.72.83.208-usmetrocom.com
208.83.72.52	PTR	fl-52.72.83.208-usmetrocom.com
208.83.72.52	A	smtp.elimailnet.com
208.83.72.66	PTR	mail.rentagenius.com
208.83.72.75	PTR	mail1.rentagenius.com
208.83.72.91	A	fifthangel.com
208.83.72.106	A	msrv.taylorelevator.net
208.83.72.106	A	mail.taylorelevator.com
208.83.72.121	A	mailhost.saintjohntheevangelist.com
208.83.72.194	PTR	fl-194.72.83.208-usmetrocom.com
208.83.72.196	PTR	fl-196.72.83.208-usmetrocom.com
208.83.72.220	A	mail.fiber-solutions.com
208.83.73.41	A+PTR	dns3.usmetrocom.com
208.83.73.75	PTR	fl-75.73.83.208-usmetrocom.com
208.83.73.75	A	tomcat.arthrex.com
208.83.73.83	A	distalchevron.es.orthoillustrated.com
208.83.73.83	A	achillessuturebridge.de.orthoillustrated.com
208.83.73.83	A	minitightropelisfranc.de.orthoillustrated.com
208.83.73.90	PTR	fl-90.73.83.208-usmetrocom.com
208.83.73.95	PTR	fl-95.73.83.208-usmetrocom.com
208.83.73.105	PTR	fl-105.73.83.208-usmetrocom.com
208.83.73.120	PTR	fl-120.73.83.208-usmetrocom.com
208.83.73.120	A	phd.arthrex.com
208.83.73.120	A	rads.arthrex.com
208.83.73.145	A	mail.lundcapital.com
208.83.73.163	PTR	hermes.communityschoolnaples.org
208.83.73.163	A+PTR	mail.communityschoolnaples.org
208.83.73.177	PTR	fl-177.73.83.208-usmetrocom.com
208.83.73.177	A	*.fireserviceusa.com
208.83.73.177	A	ms1.fireserviceusa.com
208.83.73.178	PTR	fl-178.73.83.208-usmetrocom.com
208.83.73.178	A	fireserviceusa.com
208.83.73.185	PTR	mail.fiberconholdings.com
208.83.73.188	A	lippertproperties.com
208.83.73.193	PTR	cityofbonitasprings.org
208.83.73.197	PTR	fl-197.73.83.208-usmetrocom.com
208.83.73.197	A	exchange2.cityofbonitasprings.org
208.83.73.243	PTR	fl-243.73.83.208-usmetrocom.com
208.83.74.1	A	fischerwall.fisc.com
208.83.74.9	A+PTR	ice.fisc.com
208.83.74.10	PTR	www.fisc.com
208.83.74.10	A	fisc.com
208.83.74.12	A	fisc.com
208.83.74.12	A	www.fisc.com
208.83.74.14	A	naplesart.org
208.83.74.27	A+PTR	dns3.fisc.com
208.83.74.28	A+PTR	dns4.fisc.com
208.83.74.55	A	www.mindtwist.net
208.83.74.56	A	lasalturas.net
208.83.74.56	A	svpublishing.net
208.83.74.56	A	lasalturas.us
208.83.74.60	A	keepmilkraw.org
208.83.74.62	A	lasalturas.net
208.83.74.62	A	svpublishing.net
208.83.74.62	A	lasalturas.us
208.83.74.129	PTR	fl-129.74.83.208-usmetrocom.com
208.83.74.129	A	email.barroncollier.com
208.83.74.145	A	mail.physiciansdaysurgery.net
208.83.74.213	A	csmail.summit-management.com
208.83.74.225	A	smhemail.com
208.83.74.225	A	filter.stmatthewshouse.org
208.83.74.227	A	stmatthewshouse.net
208.83.74.228	A	mail.smhemail.com
208.83.74.242	PTR	dns1.fisc.com
208.83.75.36	PTR	fl-36.75.83.208-usmetrocom.com
208.83.75.42	PTR	fl-42.75.83.208-usmetrocom.com
208.83.75.42	A	angelbaby.tv
208.83.75.49	A	pri.pelbaydev.com
208.83.75.49	A	smtp.pelbaydev.com
208.83.75.49	A	mail.pelbaydev.com
208.83.75.109	A	mail.napleschamber.org
208.83.75.135	A	mail.bcbe.com
208.83.75.159	PTR	fl-159.75.83.208-usmetrocom.com
208.83.75.160	PTR	fl-160.75.83.208-usmetrocom.com
208.83.75.161	PTR	fl-161.75.83.208-usmetrocom.com
208.83.75.161	A	support.demandtech.com
208.83.75.161	A	demandtech.com
208.83.75.167	PTR	fl-167.75.83.208-usmetrocom.com
208.83.75.167	A	www.mydocsonline.com
208.83.75.172	PTR	fl-172.75.83.208-usmetrocom.com
208.83.75.172	A	www.computerperformancebydesign.com
208.83.75.172	A	computerperformancebydesign.com
208.83.75.177	A	deliverfiles.com
208.83.75.179	A+PTR	mail1.mydocsonline.com
208.83.75.179	A	mail.myattachments.com
208.83.75.180	PTR	mydocsonline.com
208.83.75.183	A+PTR	mail2.mydocsonline.com
208.83.75.185	PTR	mydocsonline.com
208.83.75.186	PTR	mydocsonline.com
208.83.75.186	A	www.mydocsonline.com
208.83.75.186	A	myattachments.com
208.83.75.187	A	webfolders.mydocsonline.com
208.83.75.188	PTR	mydocsonline.com
208.83.75.191	PTR	fl-191.75.83.208-usmetrocom.com
208.83.75.192	PTR	fl-192.75.83.208-usmetrocom.com
208.83.75.223	PTR	fl-223.75.83.208-usmetrocom.com
208.83.75.224	PTR	fl-224.75.83.208-usmetrocom.com
208.83.75.225	PTR	mail.nabor.com
208.83.75.225	A	www.naplesarea.com
208.83.75.226	PTR	fl-226.75.83.208-usmetrocom.com
208.83.75.226	A	electronicdepositverification.com
208.83.75.226	A	mlsdepositverification.org
208.83.75.227	PTR	fl-227.75.83.208-usmetrocom.com
208.83.75.228	PTR	fl-228.75.83.208-usmetrocom.com
208.83.75.228	A	mail.nabor.com
208.83.75.239	PTR	fl-239.75.83.208-usmetrocom.com
208.83.75.240	PTR	fl-240.75.83.208-usmetrocom.com
208.83.75.247	PTR	fl-247.75.83.208-usmetrocom.com
208.83.75.248	PTR	fl-248.75.83.208-usmetrocom.com