Robtex

Up: 206.193.192.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 206.193.192.0/20
Down right: 206.193.208.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
206.193.192.19	PTR	mail.petrocomventures.com
206.193.192.42	PTR	autodiscover.goodwillhouston.org
206.193.192.42	PTR	mail.goodwillhouston.org
206.193.192.106	PTR	americanriskins.com
206.193.192.106	PTR	americanriskinsurance.com
206.193.192.126	A	mail.heatleycapital.com
206.193.192.218	A	bill-good.org
206.193.193.27	PTR	smtp.epdltd.com
206.193.193.28	PTR	smtp.epdltd.com
206.193.193.31	PTR	smtp.epdltd.com
206.193.193.90	A	wilsonbarnes.com
206.193.193.91	A	mail.wbgcllc.com
206.193.193.116	PTR	mail.gastar.com
206.193.193.118	PTR	smtp1.gastar.com
206.193.193.211	PTR	pdc02.cpiwirecloth.com
206.193.193.251	PTR	mail.whatisgrace.org
206.193.194.18	A	microstrate.com
206.193.194.28	A	hpauction.com
206.193.194.99	A	mauzylaw.com
206.193.194.99	A	jbtattorney.com
206.193.194.99	A	kentsick.com
206.193.194.195	PTR	email.rasafloors.com
206.193.195.2	A+PTR	mail.aoshouston.org
206.193.195.98	A	mail.floodpublishing.com
206.193.195.98	A	mail2.newmanflood.com
206.193.195.210	PTR	remote.flowerlocker.com
206.193.195.210	A	www.cutflow.com
206.193.195.210	A	cutflow.com
206.193.195.227	A+PTR	gdseng.com
206.193.195.227	A+PTR	snclavalin-gds.com
206.193.195.227	A+PTR	sncl.us
206.193.195.239	PTR	cadqc.com
206.193.196.34	PTR	evantell.org
206.193.196.87	A	smtp1.rbfuels.com
206.193.196.89	A	mail.rbfuels.com
206.193.196.92	A	nsng.com
206.193.196.92	A	smtp1.nsng.com
206.193.196.94	PTR	mail.nsng.com
206.193.196.213	A+PTR	mail2.westheimercpa.com
206.193.196.213	A	mail2.ws-cpa.com
206.193.197.26	PTR	smtp.mimixbroadband.com
206.193.197.213	PTR	mail.swschools.org
206.193.197.246	PTR	mail.hcapitalv.com
206.193.198.35	A	barracuda.wailuatech.com
206.193.198.35	A	barracuda.soanesfamily.com
206.193.198.37	A	northernstar-ng.com
206.193.198.37	A	valormex.com
206.193.200.62	A	dpginsite.com
206.193.202.178	PTR	mail.godwin-sbo.com
206.193.203.26	A+PTR	coregw2.qualhost.net
206.193.204.10	A	raintreereview.com
206.193.204.35	PTR	10-1w.qualhost.net
206.193.204.35	A	scysub.com
206.193.204.35	A	paddisplay.net
206.193.204.37	PTR	he03.padtechnologies.com
206.193.204.40	PTR	ns1.padtechnologies.com
206.193.204.68	A	mx01.ores.com
206.193.204.74	A	office.padtechnologies.com
206.193.204.101	PTR	mail.komen-houston.net
206.193.204.101	A	komen-houston.com
206.193.206.75	PTR	mail.gastar.com
206.193.206.77	PTR	smtp1.gastar.com
206.193.207.20	A	voip.pbxpad.net
206.193.207.45	A+PTR	mx02.securepad.net
206.193.207.46	A+PTR	mx01.padsecurity.com
206.193.207.46	PTR	mx01.padsecurity.net
206.193.207.46	PTR	mx01.securepad.net
206.193.207.51	PTR	cypresstrio.com
206.193.207.73	A	www.yourdoctorsadvice.org
206.193.207.73	A	yourdoctorsadvice.org
206.193.208.22	A	mail.abernathy-law.com
206.193.208.67	A	prolabinc.org
206.193.208.71	A	mail.prolabinc.org
206.193.208.90	A	ns2.emduvall.com
206.193.208.90	A	emduvall.com
206.193.208.250	A	mail.airperformance.com
206.193.209.46	A+PTR	mail.cathedralofhope.com
206.193.209.123	A	mail.pedieyes.com
206.193.209.170	A	mail.ashmorelaw.com
206.193.210.53	A	ns2.datarecovery.net
206.193.210.57	A	mail.datarecovery.net
206.193.210.59	A	mail3.datarecovery.net
206.193.210.94	A	www.ennis.k12.tx.us
206.193.211.134	A	myxop.com
206.193.211.242	A	z1.orangeleap.com
206.193.215.140	A	*.moritzhelp.net
206.193.215.140	A	moritzhelp.net
206.193.215.140	A	mail.moritzhelp.net
206.193.215.195	A	webportal.voclity.com
206.193.215.197	A+PTR	vm.voclity.com
206.193.216.18	A	mail.dcsi1.com
206.193.217.117	A	mail.kwintl.com
206.193.217.117	A	exchange.kwintl.com
206.193.217.186	A	mail.txregionalcouncil.org
206.193.218.34	A	webmail.wilsonwqllc.com
206.193.218.34	A	exchange.welddone.org
206.193.219.250	A+PTR	remote.sunshinelaundrysa.com
206.193.220.243	A	mail.warehouserack.com
206.193.221.11	PTR	voicemail001.voip.hearclearly.net
206.193.221.15	A+PTR	nmsvpn.bigcity.net
206.193.221.18	A	conference-001.hearclearly.net
206.193.221.32	A+PTR	reg1.hearclearly.net
206.193.221.66	A	voip.hearclearly.net
206.193.221.66	A	www.voip.hearclearly.net
206.193.221.67	A	www.voip.hearclearly.net