Robtex

Up: 8.17.80.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 8.17.84.0/23
Down right: 8.17.86.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
8.17.84.4	A	linksysconnect.speedtest.net
8.17.84.4	A	ciscoconnect.speedtest.net
8.17.84.4	A	speedypc.speedtest.net
8.17.84.11	A	jw-adnorigin.speedtest.net
8.17.84.13	A	jw-adnorigin.speedtest.net
8.17.84.22	A	crowdtweet.com
8.17.84.23	A	barackandme.com
8.17.84.34	PTR	puzzledhearts.com
8.17.84.39	A	stevenandjessica.com
8.17.84.57	A	mx3.greghutchinson.com
8.17.84.57	A	agent-sherpa.net
8.17.84.57	A	kwredbook.com
8.17.84.74	A	predictionapp.com
8.17.84.74	A	predictionapp.net
8.17.84.74	A	predictionapp.org
8.17.84.79	PTR	jobs2.sms.contextoptional.com
8.17.84.84	A	tyto.com
8.17.84.88	PTR	opsb.geobliki.com
8.17.84.88	A	mail.geobliki.us
8.17.84.93	A	mail.theheightsatbearcreekblog.com
8.17.84.93	A	mail.newportcolonyblog.com
8.17.84.93	A	mail.islandviewblog.com
8.17.84.103	PTR	autotransportdepot.com
8.17.84.107	A	joyent.cedexis.com
8.17.84.111	A	bdunk.me
8.17.84.113	A	spotpetgroup.com
8.17.84.113	A	customervantage.com
8.17.84.116	A	hostmaster.accelerati.us
8.17.84.116	A	accelerati.us
8.17.84.153	PTR	aligni.com
8.17.84.156	PTR	www.letstalkabout.com
8.17.84.158	PTR	3waywin.com
8.17.84.165	PTR	socialappguide.com
8.17.84.165	A	onghai.com
8.17.84.165	A	socialadmx.com
8.17.84.182	PTR	s3.piermontwebdesign.com
8.17.84.182	A	allweathermusic.com
8.17.84.182	A	poutymouth.com
8.17.84.192	A	mail.phlog.us
8.17.84.203	PTR	jobs1.sms.contextoptional.com
8.17.84.205	PTR	fastspring.com
8.17.84.206	A	hostmaster.roughtickets.com
8.17.84.212	PTR	api.sms.contextoptional.com
8.17.84.217	PTR	zukureview.com
8.17.84.218	PTR	odysen.com
8.17.84.224	PTR	yhhamero.joyent.us
8.17.84.225	PTR	yhhomali.joyent.us
8.17.84.226	PTR	yhjuwame.joyent.us
8.17.84.227	PTR	yhlawudi.joyent.us
8.17.84.228	PTR	yhnawaku.joyent.us
8.17.84.229	PTR	yhnenasu.joyent.us
8.17.84.230	PTR	yhpeseco.joyent.us
8.17.84.231	PTR	yhpugeha.joyent.us
8.17.84.232	PTR	yhsalaba.joyent.us
8.17.84.233	PTR	yhtidebo.joyent.us
8.17.84.234	PTR	fbbisuma.joyent.us
8.17.84.235	PTR	fbciwubi.joyent.us
8.17.84.236	PTR	fbdonilu.joyent.us
8.17.84.237	PTR	fbhouilo.joyent.us
8.17.84.238	PTR	fbjabaca.joyent.us
8.17.84.239	PTR	fbnojuge.joyent.us
8.17.84.240	PTR	fbnunito.joyent.us
8.17.84.241	PTR	fbravele.joyent.us
8.17.84.242	PTR	fbtouuju.joyent.us
8.17.84.243	PTR	fbuakewi.joyent.us
8.17.85.10	A	chompz.com
8.17.85.18	PTR	locallygrown.net
8.17.85.21	A	newafricadaily.com
8.17.85.21	A	mail.al-walaa.com
8.17.85.21	A	*.al-walaa.com
8.17.85.50	PTR	znznz.com
8.17.85.56	PTR	yhtojino.joyent.us
8.17.85.57	PTR	yhpuwoci.joyent.us
8.17.85.59	PTR	yhpewela.joyent.us
8.17.85.60	PTR	yhbolace.joyent.us
8.17.85.61	PTR	yhdahehe.joyent.us
8.17.85.62	PTR	yhtiueku.joyent.us
8.17.85.69	A	87741rhino.com
8.17.85.69	A	*.87741rhino.com
8.17.85.69	A	mailto133.87741rhino.com
8.17.85.94	A	colossal.tv
8.17.85.124	PTR	socialengineaddons.com
8.17.85.133	A	infamousanarchy.com
8.17.85.134	PTR	ddfr.tv
8.17.85.187	A	areadetransicao.com.br
8.17.85.188	A	calipers.com
8.17.85.188	A	www.calipers.com
8.17.85.192	PTR	caritas.co.jp
8.17.85.199	PTR	yourviralgames.com
8.17.85.204	A	virtualfairy.com
8.17.85.205	PTR	indiegogo.com
8.17.85.218	A	hmoliverinteriors.com
8.17.85.218	A	piershanart.com
8.17.85.218	A	waterfordconstructionkc.com
8.17.86.20	PTR	app02.goclio.com
8.17.86.21	PTR	www.joyent.com
8.17.86.24	PTR	pomelo.borange.com
8.17.86.33	PTR	gmpezkab.joyent.us
8.17.86.42	PTR	buyrenesas.com
8.17.86.42	A	thecoredifference.com
8.17.86.46	PTR	justice.joyeurs.com
8.17.86.50	PTR	filbert.joyent.us
8.17.86.50	A	mihalik.info
8.17.86.50	A	raquelquinto.com
8.17.86.51	PTR	marie.joyent.us
8.17.86.52	PTR	rodeo.joyent.us
8.17.86.52	A	mail.hingham98.com
8.17.86.52	A	mail.kavi-r.com
8.17.86.53	PTR	sunshine.joyent.us
8.17.86.54	PTR	atwood.joyent.us
8.17.86.55	PTR	richardson.joyent.us
8.17.86.57	PTR	princess.joyent.us
8.17.86.58	PTR	bay.joyent.us
8.17.86.58	A	nathaniel.no
8.17.86.58	A	mail.nathaniel.no
8.17.86.64	A	67-125-46-66.eleventhhourent.com
8.17.86.64	A	*.eleventhhourent.com
8.17.86.64	A	67-125-46-68.eleventhhourent.com
8.17.86.67	PTR	stationhill.org
8.17.86.68	PTR	backriverrecords.com
8.17.86.70	PTR	mx.mcnet.co.uk
8.17.86.70	A	sollicker.com
8.17.86.70	A	devnull.org.uk
8.17.86.73	PTR	launchlesson.com
8.17.86.73	PTR	speekit.com
8.17.86.76	PTR	j3.traquair.activecommerce.net
8.17.86.78	PTR	pomelo.textie.me
8.17.86.82	PTR	jy1nitle11.nitle.org
8.17.86.88	PTR	edueducators.com.au
8.17.86.91	A	5westtampa.com
8.17.86.91	A	indieatlanta.com
8.17.86.91	A	mymediamonitoring.com
8.17.86.92	PTR	zukureview.com
8.17.86.93	A	markedge.net
8.17.86.93	A	*.markedge.net
8.17.86.99	PTR	ideablob.com
8.17.86.100	PTR	dev.ideablob.com
8.17.86.102	A	reqollect.com
8.17.86.104	A	cimians.org
8.17.86.116	A	myartchannel.co.uk
8.17.86.123	PTR	flex.inkspout.com
8.17.86.124	A	blackblack.org
8.17.86.125	PTR	thommusic.com
8.17.86.129	PTR	famplosion.com
8.17.86.149	PTR	www.carbonplanet.com
8.17.86.155	A	ntraveler.com
8.17.86.177	A	mxvsatvunleashed.com
8.17.86.177	A	mythq.com
8.17.86.177	A	theoutfitgame.com
8.17.86.181	A	macsubversionclient.com
8.17.86.181	A	macretailsoftware.com
8.17.86.181	A	osxpos.com
8.17.86.184	PTR	jy1nitle12.nitle.org
8.17.86.188	A	mail.destinationdinners.com
8.17.86.191	PTR	af.ideeli.com
8.17.86.194	A	citicritic.com
8.17.86.195	A	beverlypark2.com
8.17.86.196	PTR	signup.joyent.com
8.17.86.197	PTR	al.ideeli.com
8.17.86.202	PTR	estoycalienteono.com
8.17.86.202	PTR	hotamigos.com
8.17.86.202	PTR	kiss.hotamigos.com
8.17.86.204	PTR	gaga.googooswap.com
8.17.86.207	PTR	tubabel.com
8.17.86.238	PTR	gq32v6aa.joyent.us
8.17.86.242	PTR	ridesidecar.com
8.17.86.244	PTR	mail.boomeryearbook.com
8.17.86.248	PTR	www.wetellstories.co.uk
8.17.87.96	A	fbmon.com
8.17.87.102	A	realestatebookblog.com
8.17.87.198	A	zubetweets.net
8.17.87.198	A	zubetweets.com