Robtex

Up: 216.21.208.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 216.21.216.0/22
Down right: 216.21.220.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
216.21.216.2	PTR	mail.lapaz-marketing.com
216.21.216.2	A	analytixdata.com
216.21.216.66	PTR	mailout-216-66.email-digiprod.com
216.21.216.90	A	mailout-216-90.email-digiprod.com
216.21.216.97	PTR	mailout-216-97.mailer-digiprod.com
216.21.216.182	A	mailout-216-182.newsletter-resource.com
216.21.216.220	A	mailout-216-220.enewsinfodailys.com
216.21.217.3	PTR	ns2.p-netmail.com
216.21.217.6	A	root.baronsmediamail.com
216.21.217.44	A	mailout-217-44.venditspin.com
216.21.217.88	A	mailout-217-88.consumerreviewoffer.net
216.21.217.130	PTR	mailout-217-130.umpmail.com
216.21.217.130	A	authns1.orangecountyfiber.coop
216.21.217.147	PTR	mailout-217-147.ez-giveawaytime.com
216.21.217.147	A	authns2.orangecountyfiber.coop
216.21.218.22	A	mailout-218-22.uniqueleadshopper.com
216.21.218.28	A	mailout-218-28.uniqueleadadvance.com
216.21.218.36	A	mailout-218-36.uniquemailoffer.com
216.21.218.54	A	mailout-218-54.uniqueleadshopping.com
216.21.218.56	A	mailout-218-56.uniqueleadshopping.com
216.21.218.62	A	mailout-218-62.uniquemailing.net
216.21.218.64	A	mailout-218-64.uniquemailing.net
216.21.218.68	A	mailout-218-68.uniquemailoffer.net
216.21.218.75	A+PTR	mailout-218-75.uniqueleaddeals.net
216.21.218.90	A	mailout-218-90.uniqueadvance.net
216.21.218.94	A	mailout-218-94.uniqueshopper.net
216.21.218.103	A	mailout-218-103.uniqueadvanceoffer.net
216.21.218.112	A	mailout-218-112.uniqueshopping2.com
216.21.218.123	A	mailout-218-123.uniquemailing2.net
216.21.218.127	A	mailout-218-127.uniquemailing2.net
216.21.219.4	A	mail.easydegreeadvance.com
216.21.219.5	A	mail.yoursocialsavings.com
216.21.219.197	A	baystatedetective.com
216.21.220.3	PTR	mail.toppagemktg.com
216.21.220.10	PTR	mail010.adknowledgemail.com
216.21.220.19	PTR	mail019.adknowledgemail.com
216.21.220.72	PTR	*.viewcontact.com
216.21.220.72	A	fga5095.viewcontact.com
216.21.220.72	A	fga2231.viewcontact.com
216.21.220.80	A	viewstrike.com
216.21.220.81	A	seestrike.com
216.21.220.82	A	seeconjunction.com
216.21.220.83	A	businessdrag.com
216.21.220.90	PTR	mailout-220-90.adk-rewards.com
216.21.220.148	A	mail001.mycashrewardmail.net
216.21.220.149	PTR	mailout-220-149.mycashrewardmail.net
216.21.220.149	A	mail002.mycashrewardmail.net
216.21.220.247	A	mail016.scholarshipforfreemail.com
216.21.220.247	A	mail013.scholarshipforfreemail.com
216.21.220.247	A	www.msfhomesecuritymail.net
216.21.220.249	PTR	static-216-21-220-249.akstatic.net
216.21.220.249	A	mailout-220-128.free-4-allmail.us
216.21.220.249	A	mail014.wonderagentmail.net
216.21.221.1	PTR	mail.eagle-i-media.com
216.21.221.10	A	mail.datamen-ns.com
216.21.221.18	A	mailout-221-18.unique-specials.com
216.21.221.20	A	mailout-221-20.unique-perks.com
216.21.221.25	A	mailout-221-25.uniqueoffermail.com
216.21.221.27	A	mailout-221-27.uniqueoffermail.com
216.21.221.32	A	mailout-221-32.uniquespecialsmail.com
216.21.221.33	A	mailout-221-33.uniquespecialsmail.com
216.21.221.42	A	mailout-221-42.uniqueemails.com
216.21.221.44	A	mailout-221-44.uniqueemails.com
216.21.221.48	A	mailout-221-48.uniqueemails.com
216.21.221.51	A	mailout-221-51.uniqueemails.com
216.21.221.59	A	mailout-221-59.nearfarshopping.com
216.21.221.168	A	mailout-221-168.dprodexclusive.com
216.21.221.169	A	mailout-221-169.dprodexclusive.com
216.21.221.171	A	mailout-221-171.unlupdate.com
216.21.221.173	A	mailout-221-173.unlupdate.com
216.21.221.177	A	mailout-221-177.dprodadvance.com
216.21.221.183	A	mailout-221-183.dprodspot.com
216.21.221.186	A	mailout-221-186.dprodspot.com
216.21.221.188	A	mailout-221-188.dprodspot.com
216.21.221.190	A	mailout-221-190.dprodspot.com
216.21.221.198	A	retinamd.net
216.21.221.210	A	mailout-221-210.uniquelistmanagementmailings.com
216.21.221.232	A	mailout-221-232.unique-exclusives.com
216.21.221.236	A	mailout-221-236.uniqueexclusives.com
216.21.221.238	A	mailout-221-238.unique-foryou.com
216.21.221.240	A	mailout-221-240.uniquelistmanagement.com
216.21.221.242	A	mailout-221-242.unlinform.com
216.21.221.244	A	mailout-221-244.unique-mailer.com
216.21.222.5	A	www.adkdm.com
216.21.222.5	A	adkdm.com
216.21.222.7	PTR	www.adkdomain.com
216.21.222.7	A	www.adkdomains.com
216.21.222.7	A	domainbt.bidsystem.com
216.21.222.11	PTR	static-216-21-222-11.akstatic.net
216.21.222.11	A	www.adknowledge-email-solutions.com
216.21.222.11	A	adknowledge-email-solutions.com
216.21.222.17	PTR	mail.chthonicheroes.com
216.21.222.19	A	integratednow.com
216.21.222.19	A	adstation.rbtrack.net
216.21.222.19	A	fga2775.integratednow.com
216.21.222.20	A	mustseeindustry.com
216.21.222.25	A	mymeasured.com
216.21.222.25	A	fga2633.measuredonline.com
216.21.222.25	A	adkentry.loseknow.com
216.21.222.26	PTR	targetcorrespondence.com
216.21.222.29	PTR	mediatrackeronline.com
216.21.222.33	A	leadsmaker007.com
216.21.222.33	A	optimumrecord.com
216.21.222.35	PTR	static-216-21-222-35.akstatic.net
216.21.222.35	A	marketingdollar123.com
216.21.222.37	PTR	static-216-21-222-37.akstatic.net
216.21.222.37	A	marketingguru123.com
216.21.222.41	PTR	static-216-21-222-41.akstatic.net
216.21.222.41	A	bottleopener15.com
216.21.222.43	PTR	static-216-21-222-43.akstatic.net
216.21.222.43	A	marketingproplus15.com
216.21.222.45	A	roimachine15.com
216.21.222.47	A	silvergenius15.com
216.21.222.49	A	thesmartmarketer15.com
216.21.222.50	A	socialweekendtrck.com
216.21.222.55	A	onenewonview.com
216.21.222.56	A+PTR	onesheepview.com
216.21.222.57	A+PTR	neonstrategy.com
216.21.222.58	A+PTR	neondiscovery.com
216.21.222.59	A+PTR	neonaudience.com
216.21.222.65	A+PTR	mailout-222-65.adkrelay.com
216.21.222.86	A	etraveltripstrck.com
216.21.222.90	A+PTR	neonbiscuit.com
216.21.222.91	A+PTR	strategyjump.com
216.21.222.92	PTR	strategymagnet.com
216.21.222.92	A	fga6486.strategymagnet.com
216.21.222.92	A	brifl.grocerycouponnetwork.com
216.21.222.93	PTR	wigglystapler.com
216.21.222.96	A+PTR	resulteffect.com
216.21.222.96	PTR	static-216-21-222-96.akstatic.net
216.21.222.97	A	reactionend.com
216.21.222.97	A	fga5966.reactionend.com
216.21.222.97	A	fga5918.reactionend.com
216.21.222.98	PTR	search4adshere.com
216.21.222.104	A+PTR	responseedit.com
216.21.222.105	A	fga6067.stringaffect.com
216.21.222.105	A	stringaffect.com
216.21.222.105	A	www.fga6112.stringaffect.com
216.21.222.106	PTR	adjustpanel.com
216.21.222.107	PTR	factphilosophy.com
216.21.222.112	PTR	static-216-21-222-112.akstatic.net
216.21.222.112	A	rearviewindustry.com
216.21.222.114	A	bestviewindustry.com
216.21.222.115	PTR	static-216-21-222-115.akstatic.net
216.21.222.115	A	streetviewindustry.com
216.21.222.116	PTR	static-216-21-222-116.akstatic.net
216.21.222.116	A	globalviewindustry.com
216.21.222.120	A	viewindustry.com
216.21.222.121	PTR	busyrange.com
216.21.222.121	A	fga6869.busyrange.com
216.21.222.121	A	www.busyrange.com
216.21.222.122	PTR	static-216-21-222-122.akstatic.net
216.21.222.123	PTR	static-216-21-222-123.akstatic.net
216.21.222.128	A	reationresult.com
216.21.222.129	PTR	responseeffect.com
216.21.222.129	PTR	static-216-21-222-129.akstatic.net
216.21.222.129	A	wwwi.tretry4.biz
216.21.222.130	PTR	capbalance.com
216.21.222.131	PTR	zinkybicycle.com
216.21.222.136	A+PTR	balloonbib.com
216.21.222.137	A+PTR	balloonclove.com
216.21.222.138	A+PTR	metalclove.com
216.21.222.139	A+PTR	fetchbicycle.com
216.21.222.145	A+PTR	ignitionjump.com
216.21.222.145	A	www.ignitionjump.com
216.21.222.146	A+PTR	factlogicweb.com
216.21.222.147	A+PTR	foulfault.com
216.21.222.152	A+PTR	lawnbicycle.com
216.21.222.152	A	fga6533.lawnbicycle.com
216.21.222.152	A	www.lawnbicycle.com
216.21.222.153	A+PTR	metalballoon.com
216.21.222.154	PTR	zinkyballoon.com
216.21.222.155	PTR	topclickdirect.com
216.21.222.160	A+PTR	directionaltilt.com
216.21.222.160	A	fga6650.directionaltilt.com
216.21.222.161	A+PTR	brilliancewonder.com
216.21.222.162	A+PTR	battledemand.com
216.21.222.163	PTR	demandingdome.com
216.21.222.168	A+PTR	truevials.com
216.21.222.169	A+PTR	undermath.com
216.21.222.170	A+PTR	everdreamstar.com
216.21.222.171	A+PTR	wonderpathdrop.com
216.21.222.176	A+PTR	skullvisions.com
216.21.222.177	A+PTR	herovantage.com
216.21.222.178	A+PTR	dispatchpull.com
216.21.222.179	A+PTR	funkysponge.com
216.21.222.184	A+PTR	chroniclepull.com
216.21.222.185	A+PTR	perfectpiper.com
216.21.222.186	A+PTR	brownbadgers.com
216.21.222.187	PTR	gumballpencil.com
216.21.222.188	A	mail.feverfind.com
216.21.222.192	PTR	static-216-21-222-192.akstatic.net
216.21.222.192	A	skypalate.com
216.21.222.193	PTR	static-216-21-222-193.akstatic.net
216.21.222.193	A	lankylane.com
216.21.222.194	PTR	static-216-21-222-194.akstatic.net
216.21.222.194	A	feverfind.com
216.21.222.195	PTR	static-216-21-222-195.akstatic.net
216.21.222.195	A	revivalhost.com
216.21.222.200	A+PTR	freedashstop.com
216.21.222.201	A+PTR	neondoorstep.com
216.21.222.202	A+PTR	viewneonsteps.com
216.21.222.202	A	fga5843.viewneonsteps.com
216.21.222.203	PTR	dashneonview.com
216.21.222.208	A+PTR	logiccameo.com
216.21.222.209	PTR	logicdodge.com
216.21.222.210	PTR	static-216-21-222-210.akstatic.net
216.21.222.210	A	reactioneffect.com
216.21.222.210	A	www.reactioneffect.com
216.21.222.214	PTR	relaydashblock.com
216.21.222.217	A+PTR	reportpull.com
216.21.222.219	A+PTR	targetreporter.com
216.21.222.220	A+PTR	logicfetch.com
216.21.222.221	A+PTR	relaydartstop.com
216.21.222.224	A+PTR	raspymat.com
216.21.222.225	A+PTR	relaysprintstop.com
216.21.222.226	A+PTR	factualmat.com
216.21.222.227	A+PTR	factualdodge.com
216.21.222.232	A	dvfa52.normat.info
216.21.222.232	A	mail.affa.info
216.21.222.232	A	*.chelson.info
216.21.222.233	PTR	cuteminipig.com
216.21.222.234	PTR	biscuitmagnet.com
216.21.222.237	PTR	ambitionreporter.com
216.21.223.3	PTR	mail.flashydogemail.com
216.21.223.4	PTR	flashydogemail.com
216.21.223.9	A	mailserver.wbmoffer.com
216.21.223.10	PTR	mail.xactmail.cc
216.21.223.10	A	mailout-213-64.mymeritoffers.com
216.21.223.72	A	mailout-223-72.adk-rewards.com
216.21.223.94	A	mailout-223-94.priceability-pennies.net
216.21.223.96	A+PTR	mailout-223-96.priceability-pennies.net
216.21.223.113	A	mailout-223-113.adk-members.com
216.21.223.120	A+PTR	mailout-223-120.priceability-pennies.net
216.21.223.170	PTR	mailout-223-170.americalapaz.com