Robtex

Up: 204.227.0.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 204.227.0.0/20
Down right: 204.227.16.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.227.0.14	A	hs2portal.managedsp.com
204.227.0.16	A	ftp.managedsp.com
204.227.0.22	A	critigenapps.com
204.227.0.40	A	afa.microsource.com
204.227.0.45	A	uaeprogram.managedsp.com
204.227.0.50	A	sophmail.allosource.org
204.227.0.50	A	securemail.allosource.org
204.227.0.65	A+PTR	newport.critigen.com
204.227.0.67	A+PTR	pspl.msi-time.com
204.227.0.73	PTR	www.meraasmsc.ae
204.227.0.73	A+PTR	jc-exfe02.justconnect.net
204.227.0.73	A+PTR	outlook.justconnect.net
204.227.0.103	A	adsscstep.ae
204.227.0.107	A	mnustrictgav01.managedsp.com
204.227.0.108	A	mx.mpmc.org
204.227.0.109	A	sde.managedsp.com
204.227.0.128	A	voicemail.managedsp.com
204.227.0.128	A	phone.managedsp.com
204.227.0.132	A	dev1.vamegaprojects.com
204.227.0.132	A	fdotdms.com
204.227.0.162	PTR	mailquarantine.managedsp.com
204.227.0.162	A+PTR	mx3.managedsp.com
204.227.0.162	A+PTR	mx4.managedsp.com
204.227.0.163	A+PTR	mx3.managedsp.com
204.227.0.163	A+PTR	mx4.managedsp.com
204.227.0.163	A+PTR	mail.microsource.com
204.227.0.200	A+PTR	mailarchive.managedsp.com
204.227.0.202	A+PTR	ccmuser.managedsp.com
204.227.0.205	A+PTR	portal.managedsp.com
204.227.0.214	A	www.ch2m.net
204.227.0.233	PTR	ch2mhillacademyservices.com
204.227.0.233	A+PTR	edgesight.managedsp.com
204.227.0.234	A	amuc.com
204.227.0.253	A	www.omahacsopt.com
204.227.0.253	A	omahacsopt.com
204.227.1.6	A	bwscgis.managedsp.com
204.227.1.7	A+PTR	webgis.managedsp.com
204.227.1.10	A	bnvp.org
204.227.1.11	A	mtamarcdms.com
204.227.1.40	A+PTR	vamegaprojects.com
204.227.1.40	A+PTR	dev.vamegaprojects.com
204.227.1.40	A	getaroundva.com
204.227.1.41	A	svn.dts-global.com.dts-global.com
204.227.1.71	A	cmmbsmtp1.managedsp.com
204.227.1.76	A+PTR	cmmb-portal.managedsp.com
204.227.1.76	PTR	cmmbtest.managedsp.com
204.227.1.82	A	lametrodms.org
204.227.1.95	A	compliance-on-demand.com
204.227.1.109	A	verizonwireless.managedsp.com
204.227.1.109	A	suffolksses.managedsp.com
204.227.1.109	A	sandhills.managedsp.com
204.227.1.152	A	renaissanceins.com
204.227.1.152	A	www.renaissanceins.com
204.227.1.158	A	utilitiescmms.net
204.227.1.158	A	utilitiescmms.com
204.227.3.90	A	mail.diyouth.net
204.227.9.20	PTR	webmail.zwirns.com
204.227.9.20	PTR	mail.zwirns.com
204.227.9.20	A+PTR	ax-server.zwirns.com
204.227.9.26	A	lotteryunivercity.net
204.227.9.131	A+PTR	emsdev.critigen.com
204.227.9.140	A	vecopolar.com
204.227.9.140	A	vecopolar.org
204.227.9.140	A	vecopolar.net
204.227.9.197	PTR	web5.fallenknight.org
204.227.9.197	A	jeremyhuber.com
204.227.9.197	A	curiousadmin.org
204.227.9.250	A	transforming-transitions.net
204.227.9.251	A	mail.transforming-transitions.net
204.227.10.54	A	sce.floydsbarbershop.com
204.227.11.17	A	adams50.k12.co.us
204.227.11.17	A	natoutbound.adams50.k12.co.us
204.227.11.18	A	natoutbound.adams50.k12.co.us
204.227.11.42	A	ns3.techsquadron.com
204.227.12.9	PTR	mgma.com
204.227.12.9	PTR	mgma.org
204.227.12.9	PTR	www.lessonsforfinancialsuccess.com
204.227.12.10	PTR	arrowhead.mgma.com
204.227.12.16	PTR	bsc.mgma.com
204.227.12.16	PTR	data.mgma.com
204.227.12.16	PTR	bsc.mgma.org
204.227.12.99	A+PTR	mail.goalsolutions.com
204.227.12.99	PTR	email.goalsolutions.com
204.227.12.99	A	mail.goalfinancial.net
204.227.12.100	A	secure.goalfinancial.net
204.227.12.100	A	secure.goalsolutions.com
204.227.13.6	PTR	testims.awwa.org
204.227.13.32	PTR	persrepp.awwa.org
204.227.13.50	PTR	pers721.awwa.org
204.227.13.52	A	test.awwa.org
204.227.13.52	A	buriednolonger.org
204.227.13.52	A	thewaterlibrary.com
204.227.13.129	A	webmail.tucc.com
204.227.13.130	A+PTR	secure.tucc.com
204.227.13.131	A+PTR	citrix.tucc.com
204.227.13.132	A+PTR	tucc-ctx01.tucc.com
204.227.13.194	A+PTR	smtp1.agtoal.net
204.227.14.108	PTR	plrdev1.managedsp.com
204.227.14.108	PTR	plrdev2.managedsp.com
204.227.14.108	PTR	plrdev3.managedsp.com
204.227.14.196	PTR	visualpm2.managedsp.com
204.227.16.4	A	www.sylinq.com
204.227.16.4	A	sylinq.com
204.227.19.24	A	usdspatial.com
204.227.25.138	PTR	wizware138.wizwarecomputers.com
204.227.26.5	A+PTR	webmail.critigen.com
204.227.26.5	A+PTR	testmail.managedsp.com
204.227.26.5	A+PTR	webmail.managedsp.com
204.227.26.8	A+PTR	ctx.critigen.com
204.227.26.8	PTR	ctxdev.critigen.com
204.227.26.34	A+PTR	eppmr81.critigen.com
204.227.26.39	PTR	cloudeppm.com
204.227.26.39	PTR	cloudeppm.net
204.227.26.39	A+PTR	eppmcloud.net
204.227.26.40	PTR	cm-int.eppmcloud.com
204.227.26.40	PTR	p6-int.eppmcloud.com
204.227.26.40	PTR	p6analytics.eppmcloud.com
204.227.26.75	A	critigen.net
204.227.26.75	A	microsource.com
204.227.26.75	A	sap.critigen.com
204.227.26.157	A	nema.ihs.com
204.227.26.160	A	koppers-uat.ihs.com
204.227.26.161	A	transmontaigne.ihs.com
204.227.26.162	A	covanta.ihs.com
204.227.26.165	A	delta.ihs.com
204.227.26.252	A	secretsde.synoptek.com
204.227.28.3	A	russos.net
204.227.28.3	A	russoweb01.russos.net
204.227.28.3	A	www.russos.net
204.227.28.6	A	mail.russos.net
204.227.28.129	PTR	mail.fpcboulder.org
204.227.30.10	A+PTR	ns3.managedsp.com
204.227.30.10	A	wgustrichmns03.managedsp.com
204.227.30.20	PTR	mail.imagi.net
204.227.30.20	A	mail.yfc.net
204.227.30.20	A	cgpro.iccx.net