Robtex

Up: 66.230.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 66.230.72.0/23
Down right: 66.230.74.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.230.72.1	A	expedient.gw.smartbuilding.org
66.230.72.5	A	pciv-gw.ret.expedient.net
66.230.72.7	A	smartmapper.smartbuilding.org
66.230.72.8	A	v2.smartbuilding.org
66.230.72.9	A	dns.smartbuilding.org
66.230.72.9	A	dfs.gw.smartbuilding.org
66.230.72.10	A	lj-pet.smartbuilding.org
66.230.72.15	A	shortridge.gw.smartbuilding.org
66.230.72.17	A	kline.gw.smartbuilding.org
66.230.72.23	A	pcgf.gw.smartbuilding.org
66.230.72.29	A	sbexchsvr1.smartbuilding.org
66.230.72.31	A	nwwin.smartbuilding.org
66.230.72.34	A	ppnd.gw.smartbuilding.org
66.230.72.37	A+PTR	choice.gw.smartbuilding.org
66.230.72.47	A	portofpgh.gw.smartbuilding.org
66.230.72.51	A	pra.gw.smartbuilding.org
66.230.72.55	A	pcpe.gw.smartbuilding.org
66.230.72.62	A	valueclick-gw.ret.expedient.net
66.230.72.67	A+PTR	ridc.gw.smartbuilding.org
66.230.72.68	A	chlc.wapchlc.smartbuilding.org
66.230.72.74	A	ocdpfs.smartbuilding.org
66.230.72.79	A	aplus-gw.smartbuilding.org
66.230.72.85	A	coro2.gw.smartbuilding.org
66.230.72.88	A	joshua4.3rc.org
66.230.72.95	A	cdf.3rc.org
66.230.72.99	A	riverhead-23.smartbuilding.org
66.230.72.108	PTR	accdfilter.alleghenyconference.org
66.230.73.68	A	as1.clark.pitbpa.e-xpedient.com
66.230.73.83	PTR	sk-osxserver.sunkingdigital.com
66.230.73.84	A	*.pghboatsales.com
66.230.73.86	PTR	mail.agency1903.com
66.230.73.121	PTR	srv-66-230-73-121.salesgene.com
66.230.73.130	PTR	ats-exch.ats.edu
66.230.73.130	PTR	as1.ansoft.pitbpa.e-xpedient.com
66.230.73.150	PTR	achsng.com
66.230.73.150	A	ach-gw0.cust.e-xpedient.com
66.230.73.194	A+PTR	albertgallatinareasd-gw-0.cust.e-xpedient.com
66.230.73.197	A	www.grane.com
66.230.73.198	A	mail.serversavvygamers.com
66.230.73.198	A	serversavvygamers.com
66.230.73.200	A	qnsrecruiting.com
66.230.73.200	A	qualitynursingsolutions.com
66.230.73.201	A	mail.grane.com
66.230.73.203	A	globalnursingsolutions.com
66.230.73.207	A	mygranehospice.com
66.230.73.208	A	mycambriacarecenter.com
66.230.73.208	A	myharmarvillagecarecenter.com
66.230.73.208	A	myprovidencecarecenter.com
66.230.73.210	PTR	smtp.grane.com
66.230.73.217	A	granehomecare.com
66.230.73.227	A	seniorlifegreensburg.com
66.230.73.227	A	seniorcaregreene.com
66.230.73.227	A	seniorlifewashington.com
66.230.73.228	A	paceconsultingsolutions.com
66.230.73.228	A	seniorsathomepa.com
66.230.73.228	A	pace-cs.com
66.230.74.14	A	ups1.qvms.pitbpa.e-xpedient.com
66.230.74.22	A	ar1.regent.pitbpa.e-xpedient.com
66.230.74.27	A	aspstation-gw0.cust.e-xpedient.com
66.230.74.43	PTR	cipa.bviu.org
66.230.74.69	PTR	mtlsd.net
66.230.74.105	PTR	pt.mtlsd.org
66.230.74.130	PTR	rsd.k12.pa.us
66.230.74.163	A	as1.2401sm.pitbpa.e-xpedient.com
66.230.74.167	A	as1.209sigma.pitbpa.e-xpedient.com
66.230.74.170	A	as1.mpl.pitbpa.e-xpedient.com
66.230.74.171	A	as1.des.pitbpa.e-xpedient.com
66.230.74.175	A	as1.psc.pitbpa.e-xpedient.com
66.230.74.177	A	as2.pohio.pitbpa.e-xpedient.com
66.230.74.178	A	as1.genco.pitbpa.e-xpedient.com
66.230.74.235	A	genco2.genco.com
66.230.75.107	A	as2.ltc.pitbpa.e-xpedient.com
66.230.75.208	PTR	ar4.pitc.pitbpa.e-xpedient.com
66.230.75.252	A	fil-node.expedient.com
66.230.75.252	A	car1.eqnxf.washdc.e-xpedient.com
66.230.75.252	A	fil-node1.expedient.com