Robtex

Up: 72.236.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 72.236.0.0/17
Down right: 72.236.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.236.16.50	PTR	mail.davlong.com
72.236.16.146	PTR	mail.jttconst.com
72.236.17.10	PTR	mail.orthocentersav.com
72.236.17.10	A	mail.seimgserv.com
72.236.17.10	A	mail.chathammed.com
72.236.17.50	PTR	mail.indconvbeltsys.com
72.236.17.50	PTR	mail.kmachineindsvc.com
72.236.17.50	PTR	mail.macaljon.com
72.236.18.130	PTR	mail.theprintshop.net
72.236.18.148	PTR	mail.huntermaclean.com
72.236.18.230	A	ptsmtpgate1.globeemail.net
72.236.18.230	A	ptsmtpgate1.globedev.net
72.236.18.231	A	ptsmtpout1.globeemail.net
72.236.18.237	A	ptsmtpout2.globeemail.net
72.236.19.5	A	ns3.sabre-tech.com
72.236.19.6	PTR	sabre-tech.biz
72.236.19.6	PTR	www.sabre-tech.biz
72.236.19.12	PTR	smtp.sabre-tech.com
72.236.19.12	A	brassweb01.brasselerorders.com
72.236.19.14	A	barracuda.sabre-tech.com
72.236.19.15	A	fs1.sabre-tech.com
72.236.25.2	PTR	mail.allmanspry.com
72.236.26.13	A	tfw-telcove.tgic.com
72.236.26.20	A	tnx1.tgic.com
72.236.26.50	A	extranet.tgic.com
72.236.26.100	A	ftpprod.tgic.com
72.236.28.2	A+PTR	hypr21tunnel.hypertherm.com
72.236.28.3	PTR	mdmnh1.hypertherm.com
72.236.28.4	A+PTR	ftp.hypertherm.com
72.236.28.5	A+PTR	xnet.hypertherm.com
72.236.28.7	A	www.hyperthermcam.com
72.236.28.15	A	xnet.hypertherm.com
72.236.51.23	PTR	webmail.dynamicquest.com
72.236.57.38	PTR	sjwd.com
72.236.65.4	A+PTR	ns2-tlh.infinity-software.com
72.236.65.8	A	ns1-tlh.infinity-software.com
72.236.65.32	A	barracuda.infinity-mail.net
72.236.65.32	A	barracuda2.infinity-mail.net
72.236.67.139	A	mail.altrua.com
72.236.67.139	A	mail.altruamarketing.com
72.236.67.140	A	*.altrua.com
72.236.67.140	A	altrua.com
72.236.68.50	A	mail.ford-transmission.com
72.236.68.50	A	mail.man-trans.net
72.236.68.50	A	mail.mantrans.net
72.236.68.244	A	wave94.com
72.236.69.36	PTR	dn01.beceng.com
72.236.69.37	PTR	dn02.beceng.com
72.236.69.39	PTR	becconsult.com
72.236.69.39	PTR	becind.com
72.236.69.39	PTR	becserv.com
72.236.70.20	PTR	mail.williams-communications.com
72.236.70.20	A	williams-communications.com
72.236.70.234	A	netsatonline.net
72.236.72.2	PTR	yellow2.ctusa1.com
72.236.72.3	PTR	yellow3.ctusa1.com
72.236.74.6	A	lucerodc1.summithostingonline.com
72.236.74.7	A	lucerodc1.summithostingonline.com
72.236.74.7	A	admin.summithostingonline.com
72.236.74.18	A+PTR	server7.summithostingonline.com
72.236.74.19	A+PTR	server7.summithostingonline.com
72.236.74.23	A	lucerotraining.com
72.236.75.10	PTR	paulwestlaw.com
72.236.75.10	PTR	mail.pineyzhomes
72.236.75.10	PTR	mail.biblequiz.cc
72.236.75.93	A	www.life-flights.com
72.236.75.99	A	www.discountairambulance.com
72.236.75.130	A	mailin.thefarcornersoftheglobe.com
72.236.75.130	A	thefarcornersoftheglobe.com
72.236.80.29	A	mshagiftshops.com
72.236.80.29	A	myheartandvascular.com
72.236.80.29	A	blueridgeorthopaedics.net
72.236.82.162	A	takomaipacs.org
72.236.83.130	PTR	exchange.saratogaus.com
72.236.86.14	A	mail.providenceacademy.com
72.236.86.122	A	mail.theridges.cc
72.236.86.227	A	mail.landmarkcorp.com
72.236.87.82	A	72-236-87-82.static.lwav.net
72.236.87.222	A	72-236-87-222.static.lwav.net
72.236.87.230	A	smtp.sescomgt.com
72.236.92.66	A	mooneys.lwav.net
72.236.92.194	A	72-236-92-194.static.lwav.net
72.236.95.3	PTR	mail.dawnofhope.com
72.236.95.130	A+PTR	exchange.cambronins.com
72.236.101.1	A+PTR	roxanne.lwav.net
72.236.101.1	A	bluffcitypd.com
72.236.101.1	A	mail.bluffcitypd.com
72.236.101.2	PTR	maxine.lwav.net
72.236.104.121	A	mail.thespecialfiguy.com
72.236.106.90	PTR	mail.skywaycapital.com
72.236.106.90	A	skywaycap.com
72.236.106.90	A	mail.mhllc.net
72.236.107.193	A	mail.ecampaignpro.com
72.236.107.194	A	mail4.ecampaignpro.com
72.236.107.194	A	www.ecampaignpro.com
72.236.107.194	A	ecampaignpro.com
72.236.109.3	A	mail3.mailmt.com
72.236.112.195	PTR	usiexchg.unicaresys.com
72.236.115.30	PTR	mail.ampm1.com
72.236.125.193	PTR	72-236-125-193.broadstar.com
72.236.129.5	PTR	www.leeclerk.org
72.236.129.100	PTR	mail.clcs-fl.com
72.236.131.47	A	cidervoyage.us
72.236.134.89	PTR	rai-na.com
72.236.137.75	PTR	ecof.com
72.236.138.66	PTR	mail.ibci.net
72.236.138.242	A	exchange.mcgregor.net
72.236.140.34	PTR	mail.rai-na.com
72.236.140.35	PTR	mail.rai-na.com
72.236.140.42	PTR	sater.com
72.236.140.42	PTR	saterdesign.com
72.236.140.42	PTR	mail.sater.com
72.236.141.194	A	ns2.leepa.org
72.236.141.207	A	fieldcards.leepa.org
72.236.141.210	A	pol.leepa.org
72.236.141.211	A	gissvr.leepa.org
72.236.144.2	PTR	pix.hanover.k12.va.us
72.236.144.3	A+PTR	mail.hanover.k12.va.us
72.236.144.3	A	hcps3.hanover.k12.va.us
72.236.144.4	A	hanover.k12.va.us
72.236.144.4	A	www.hcps.us
72.236.148.26	A	dpereira.com
72.236.148.26	A	mail.dpereira.com
72.236.148.99	A	smtpus03.hamburgsud.com
72.236.148.100	A	us.hamburgsud.com
72.236.149.3	PTR	gate.waysidetechnology.com
72.236.149.134	A	www.aquin.de
72.236.149.134	A	mig21.de
72.236.149.134	A	aquila.de
72.236.151.31	A	mail.difelearning.com
72.236.151.31	A	smtp.mailsupportsystem.com
72.236.151.31	A	mail.haywardpoolside.com
72.236.153.75	A	avantimaging.net
72.236.153.79	A	patriotspridecorp.com
72.236.153.82	A	ergencystaffing.com
72.236.153.82	A	ergencystaffing.net
72.236.154.3	A	fnpesupport.com
72.236.154.3	A	fnpihost.com
72.236.154.10	PTR	mail.newspost.com
72.236.154.10	A	mail.thenewspost.com
72.236.154.130	PTR	voip-gw.strosniders.com
72.236.154.130	A	www.partyandvariety.com
72.236.156.3	A	helpdesk.ginl.state.gov
72.236.156.4	A	inlinsight.ginl.state.gov
72.236.156.7	A	www.ginl.state.gov
72.236.156.18	A	awis.ginl.state.gov
72.236.158.232	A	globeemail.net
72.236.158.232	A	www.globewireless.net
72.236.158.232	A	www.globeemail.net
72.236.159.13	A	melbournechad.com
72.236.160.4	PTR	rbsw.tgs-solutions.com
72.236.160.17	A	drmail.tekmarkinc.com
72.236.162.1	A	lp3.raritan.com
72.236.162.2	PTR	dns.raritan.com
72.236.163.5	A	mail.setnine.net
72.236.163.28	A	mail.woodridge-dentist.com
72.236.165.2	A	ns1.windowworldcallreports.com
72.236.165.2	A	ns1.clockworkcallreports.com
72.236.165.12	A	weatherfied.com
72.236.165.12	A	germfog.com
72.236.166.100	A	hyphos360.com
72.236.166.107	A	mail.hyphos360.com
72.236.167.230	A	electronicdatainc.com
72.236.167.235	A	mx.electronicdatainc.com
72.236.168.94	PTR	mail.portcanaveral.org
72.236.170.26	A+PTR	morse-commu.car1.orlando1.level3.net
72.236.172.50	PTR	libertyaircraft.com
72.236.172.50	PTR	server1.libertyaerospace.com
72.236.172.146	PTR	islandsys.net
72.236.172.147	PTR	islandsys.net
72.236.173.5	A	msd.srs.com
72.236.173.133	A	linux02.globewireless.com
72.236.173.135	A	webcast.globewireless.com
72.236.173.141	A	messaging.globewireless.com
72.236.174.135	A	edge.morse-communications.com
72.236.174.135	A	edge.morsecom.com
72.236.174.138	A	mail.moxielete.com
72.236.174.138	A	moxielete.com
72.236.175.2	PTR	ns1.synergon.net
72.236.175.3	PTR	ns2.synergon.net
72.236.175.4	A	www.synergonsolutions.com
72.236.175.13	A	support.winsys.com
72.236.175.13	A	winsys.synergon.net
72.236.175.14	A	titan.synergon.net
72.236.177.172	A	mail.findafairway.com
72.236.183.5	A+PTR	pnj-lclnscvi.pensacolanewsjournal.com
72.236.183.9	A	vpn01.pensacolanewsjournal.com
72.236.193.13	A	mail.bdrexpress.com
72.236.193.154	PTR	summitink.com
72.236.194.38	PTR	mail.merlinsolutions.com
72.236.194.38	A	mail.merlinkdrs.com
72.236.195.4	A+PTR	mail.fredmut.com
72.236.195.4	A	mail.frederickmutual.com
72.236.195.195	A	afpmb.org
72.236.195.195	A	www.afpmb.org
72.236.205.12	PTR	ns2.netrover.net
72.236.205.21	PTR	webs.sitestar.net
72.236.205.25	A	mail2.1st.net
72.236.205.50	PTR	mail.rica.net
72.236.205.76	A	newyorknet.net
72.236.205.80	A	ftp.prolynx.net
72.236.205.100	A	common-cents.net
72.236.206.3	A	ns1.trutechnology.net
72.236.206.3	A	ns-01.ceva.net
72.236.206.3	A	mxbackup.trutechnology.net
72.236.206.176	PTR	mx176.genesishcc.com
72.236.208.122	A	roanoke.insystems.com
72.236.210.4	PTR	mail.depaulfamilyservices.org
72.236.210.21	PTR	barracuda.hall-realtor.com
72.236.210.22	A	mail.hall-realtor.com
72.236.210.22	A	mx-72-236-210-22.hallassociatesinc.com
72.236.210.124	A	mail.jamlaw.net
72.236.210.187	A	mail.mrswa.com
72.236.211.58	A	rocmail.roanokeortho.com
72.236.211.125	A	mail2.fleetmasterexpress.com
72.236.211.126	A	mail.fleetmasterexpress.com
72.236.211.212	A	ns-us.insystems.com
72.236.213.1	A	router1.blacksburg.net
72.236.213.4	A	ts03.blacksburg.net
72.236.213.5	A	pluto.blacksburg.net
72.236.213.8	A	venus.blacksburg.net
72.236.222.0	A+PTR	0.222.236.72.unassigned.omegacomminc.com
72.236.223.0	A+PTR	0.223.236.72.unassigned.omegacomminc.com
72.236.226.221	A	mdondemand.mdmercy.com
72.236.228.0	A+PTR	0.228.236.72.unassigned.omegacomminc.com
72.236.228.1	A	roa-rou-01.isp-oci.com
72.236.228.2	A	roa-swi-01.isp-oci.com
72.236.228.5	A	roa-nsa-02.isp-oci.com
72.236.229.0	A	0.229.236.72.unassigned.omegacomminc.com
72.236.229.41	A	frankanddayna.com
72.236.229.206	A+PTR	206.229.236.72.unassigned.omegacomminc.com
72.236.229.230	A	230.229.236.72.unassigned.omegacomminc.com
72.236.230.0	A+PTR	0.230.236.72.unassigned.omegacomminc.com
72.236.230.1	A+PTR	1.230.236.72.unassigned.omegacomminc.com
72.236.230.2	A+PTR	2.230.236.72.unassigned.omegacomminc.com
72.236.230.3	A+PTR	3.230.236.72.unassigned.omegacomminc.com
72.236.231.0	A	0.231.236.72.unassigned.omegacomminc.com
72.236.248.0	A+PTR	0.248.236.72.unassigned.omegacomminc.com
72.236.248.130	A+PTR	sandjphoto.com
72.236.249.0	A	0.249.236.72.unassigned.omegacomminc.com
72.236.250.0	A+PTR	0.250.236.72.unassigned.omegacomminc.com
72.236.250.1	A+PTR	1.250.236.72.unassigned.omegacomminc.com
72.236.250.6	A	6.250.236.72.unassigned.omegacomminc.com
72.236.250.11	A	11.250.236.72.unassigned.omegacomminc.com
72.236.251.0	A	0.251.236.72.unassigned.omegacomminc.com
72.236.254.18	A	spotrewards.com
72.236.254.18	A	*.gmcgifts.com
72.236.254.18	A	csicollegiate.com
72.236.255.1	A+PTR	gw.olm1.com
72.236.255.3	A+PTR	giga.olm1.com
72.236.255.5	A+PTR	sonic.olm1.com
72.236.255.11	A	newyorkvinylgraphics.com