Robtex

Up: 199.223.0.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 199.223.16.0/21
Down right: 199.223.24.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
199.223.16.3	A+PTR	csd.icfi.com
199.223.16.3	A+PTR	nocsd.icfi.com
199.223.16.45	PTR	anyconnect.icfi.com
199.223.16.45	A+PTR	anyconnectcsd.icfi.com
199.223.16.45	PTR	remote.icfi.com
199.223.16.46	A	remote.icfi.com
199.223.16.46	A	anyconnect.icfi.com
199.223.16.55	A+PTR	video.icfi.com
199.223.17.176	PTR	afcasurvey.com
199.223.17.176	PTR	spouseafcasurvey.com
199.223.17.176	PTR	www.armymwrsurvey.com
199.223.18.65	A	itservices.icfconsulting.com
199.223.22.6	A	dialin.icfi.com
199.223.22.6	A	lyncdiscover.icfconsulting.com
199.223.22.6	A	lyncdiscover.icfi.com
199.223.22.11	A	taleo.icfi.com
199.223.22.11	A	services.icfi.com
199.223.22.14	PTR	www.icfsurvey.com
199.223.22.41	A	scs.icfconsulting.com
199.223.22.41	A	spam.icfconsulting.com
199.223.22.46	PTR	password.icfi.com
199.223.22.47	A	services.icfi.com
199.223.22.56	A+PTR	legacy.icfi.com
199.223.22.57	A+PTR	ft.icfi.com
199.223.22.68	A+PTR	icfjasi.icfi.com
199.223.22.68	A+PTR	jobopps.icfi.com
199.223.22.68	A+PTR	joboppstest.icfi.com
199.223.22.74	A	ns03.icfi.com
199.223.22.84	PTR	icfrsa.icfi.com
199.223.22.85	A	va01exch2k3.icf-hq.icfconsulting.com
199.223.22.89	A	cbosspns.com
199.223.22.98	PTR	helpdesk.icfconsulting.com
199.223.22.98	A	fysonline.com
199.223.22.113	A+PTR	digitallibraries.macrointernational.com
199.223.22.123	PTR	vnuworkspace.icfi.com
199.223.22.123	PTR	workspace.icfi.com
199.223.22.123	A	hesp.icfi.com
199.223.22.124	A	media.icfi.com
199.223.22.125	A	citteam.icfi.com
199.223.22.145	PTR	icfconsulting.ca
199.223.22.145	PTR	apcg.com
199.223.22.145	PTR	calib.com
199.223.22.151	PTR	help.icfi.com
199.223.22.152	PTR	icfsurveysupport.com
199.223.22.168	PTR	dv2.icfi.com
199.223.22.182	A	memosbeta.measuredhs.com
199.223.22.198	A+PTR	smtp.icfi.com
199.223.22.199	A+PTR	smtp.icfi.com
199.223.22.203	PTR	intranet.icfi.com
199.223.22.203	PTR	intranet2013.icfi.com
199.223.22.203	PTR	mysite.icfi.com
199.223.22.210	A+PTR	autodiscover.icfi.com
199.223.22.210	PTR	webmail.icfi.com
199.223.22.211	A+PTR	sip.icfconsulting.com
199.223.22.211	A+PTR	sipexternal.icfconsulting.com
199.223.22.211	A+PTR	sip.icfi.com
199.223.22.212	PTR	access.icfi.com
199.223.22.212	A+PTR	sip.icfi.com
199.223.22.212	A+PTR	sipexternal.icfi.com
199.223.22.213	PTR	av.icfi.com
199.223.22.224	A	icfmtvweb1.com
199.223.22.230	A	icfi.com
199.223.22.243	A	sipexternal.icfconsulting.com
199.223.22.243	A	sip.icfi.com
199.223.22.243	A	sip.icf.com
199.223.22.246	A	sipexternal.icfconsulting.com
199.223.22.246	A	sip.icfi.com
199.223.22.246	A	sip.icf.com
199.223.23.6	A	lists.icfwebservices.com
199.223.23.6	A	mail.lists.icfwebservices.com
199.223.23.8	A+PTR	mail.icfwebservices.com
199.223.23.8	A	mail.hudexchange.info
199.223.23.16	A+PTR	lists.childwelfare.gov
199.223.23.22	A	quadel-rdvp.icfi.com
199.223.23.25	A+PTR	tmsprojects.icfi.com
199.223.23.31	A	consumerslightingapp.com
199.223.23.38	A	www.focusonenergy-findaretailer.com
199.223.23.38	A	focusonenergy-findaretailer.com
199.223.23.41	A	mienergyadvisor.com
199.223.23.42	A	consumershei.com
199.223.23.50	A	pasurvey.icfsurveys.com
199.223.23.50	A	icfsurveys.com
199.223.23.50	A	www.lgyrealtor-nar.icfsurveys.com
199.223.23.64	A	ojjdptta360.org
199.223.23.65	PTR	cmhs-qs.icfwebservices.com
199.223.23.65	A+PTR	erc-temp.icfwebservices.com
199.223.23.65	PTR	fhsweb.icfwebservices.com
199.223.23.66	PTR	crestweb.org
199.223.23.66	PTR	www.crestweb.org
199.223.23.67	A	duke-energyrnchomes.com
199.223.23.69	A	ojjdptta360.org
199.223.23.81	A	newyorkyouthsurvey.com
199.223.23.81	A	www.conedisonresidential.com
199.223.23.83	A	kcplreadi.com
199.223.23.84	A	armythinline.net
199.223.23.96	A	nyccleanheat.org
199.223.23.96	A	cleanheatnyc.com
199.223.23.96	A	www.nyccleanheat.org
199.223.23.112	A	ovcitverp.com
199.223.23.114	A	locator.aids.gov
199.223.23.115	A	www.bgesmartenergy.com
199.223.23.115	A	bgerecyclemyoldfridge.com
199.223.23.128	A	consumersenergytradeally.com
199.223.23.128	A	www.consumersenergytradeally.com
199.223.23.129	A	www.socalenergyupgradecontractors.com
199.223.23.129	A	socalenergyupgradecontractors.com
199.223.23.144	A	blog.aids.gov
199.223.23.145	A	communitiestransforming.com
199.223.23.145	A	communitiestransforming.org
199.223.23.145	A	communitiestransforming.net
199.223.23.160	PTR	mctft.icfwebservices.com
199.223.23.160	A+PTR	mctftorders.icfwebservices.com
199.223.23.160	A+PTR	neieval.icfwebservices.com
199.223.23.177	A	tuesweb.org
199.223.23.178	A	rdeweb.org
199.223.23.179	A	massraters.com
199.223.23.180	PTR	wheresville.icfi.com
199.223.23.180	PTR	esnaps-hudhre.icfwebservices.com
199.223.23.180	A+PTR	hmis-hudhre.icfwebservices.com
199.223.23.192	A	www.veteransurvey.org
199.223.23.192	A	veteransurvey.org
199.223.23.193	A	ffrdcsurvey.org
199.223.23.193	A	herdsurvey.org
199.223.23.209	PTR	scegportal.icfi.com
199.223.23.209	PTR	delmarvanewhomes.icfwebservices.com
199.223.23.209	PTR	delmarvareports.icfwebservices.com
199.223.23.213	A	psobusinessrebates.com
199.223.23.214	A	www.consumersinwin.com
199.223.23.226	A	pnmchequeodelhogar.com
199.223.23.226	A	www.pnmhomecheckup.com
199.223.23.226	A	pnmhomecheckup.com
199.223.23.235	A	helpdesk.hudhre.info
199.223.23.242	A	lsampbd.org
199.223.23.248	A	www.onecpd.info
199.223.23.248	A	www.hudexchange.info
199.223.23.248	A	onecpd.info
199.223.24.16	A	mail.ooc.fema-rep.com
199.223.24.26	A	review.globalchange.gov
199.223.24.30	A	ftcefile-stage.icfwebservices.com
199.223.24.65	A+PTR	icfwebservices.com
199.223.24.65	PTR	cmhs-stage.icfwebservices.com
199.223.24.65	PTR	cmhsqs-stage.icfwebservices.com
199.223.24.90	A	lyrismedia.icfwebservices.com
199.223.24.95	A	toolkit.childwelfare.gov
199.223.24.151	A	onecpdlearn.info
199.223.24.151	A	hudexchangelearn.info
199.223.24.151	A	sfwampy.com
199.223.24.160	PTR	tuesdemo-stage.icfwebservices.com
199.223.24.160	PTR	toosmarttostart2-stage.icfwebservices.com
199.223.24.160	PTR	niconstage.icfwebservices.com
199.223.28.10	A	webmail.icfi.com
199.223.28.10	A	webmail.icf.com
199.223.28.20	A	password.icfi.com
199.223.28.98	A	fysonline.com
199.223.28.220	A	ctprofilesprincipal.com
199.223.28.220	A	2020questionsandanswers.com
199.223.28.220	A	healthycommunitys.com