Robtex

Up: 208.81.160.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 208.81.168.0/22
Down right: 208.81.172.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.81.170.18	A	mail.glasstra.com
208.81.171.13	A+PTR	ns03.neptunonetworks.net
208.81.171.18	A	ns06.neptunonetworks.net
208.81.171.19	PTR	ns06.neptunonetworks.net
208.81.171.19	A	ns07.neptunonetworks.net
208.81.171.20	A+PTR	ns0.neptunonetworks.net
208.81.172.13	A+PTR	ns01.neptunonetworks.net
208.81.173.58	A	cooplajassms.com
208.81.173.99	A	tristani.com
208.81.173.226	PTR	mail.jcqfoods.com
208.81.174.7	A	mail.w00pz.com
208.81.174.9	A+PTR	barracuda.prcinternet.net
208.81.174.9	PTR	vbarracuda.prcinternet.net
208.81.174.10	A+PTR	ns2.prcinternet.net
208.81.174.11	A+PTR	mail.bluewatersinsurers.com
208.81.174.12	PTR	bonanzapr.com
208.81.174.14	A	mail.prcinternet.net
208.81.174.16	A	poncecashandcarry.com
208.81.174.16	A	webmail.poncecashandcarry.com
208.81.174.17	PTR	nauticodesanjuan.com
208.81.174.18	A+PTR	plesk.prcinternet.net
208.81.174.19	A	smtp1.prcinternet.com
208.81.174.26	A+PTR	mcanoseguros.com
208.81.174.26	A	mail.mcanoseguros.com
208.81.174.27	PTR	mail.albericchrysler.com
208.81.174.27	A	albericchrysler.com
208.81.174.28	PTR	www.bbravocpa.com
208.81.174.28	A	mail.bbravocpa.com
208.81.174.30	PTR	vitalenergypr.com
208.81.174.37	A	garageeuropa.com
208.81.174.38	A	gomezhermanoskennedy.com
208.81.174.41	A	mail.qualityinnelportal.com
208.81.174.42	A	okiedokieathome.com
208.81.174.42	A	arlawpr.com
208.81.174.43	PTR	webmail.umpierre-suarez.com
208.81.174.43	A	umpierre-suarez.com
208.81.174.45	PTR	mail.albericcolon.com
208.81.174.49	A+PTR	mail.amapolare.com
208.81.174.49	A+PTR	webmail.amapolare.com
208.81.174.49	A	amapolare.com
208.81.174.51	PTR	albericjeep.com
208.81.174.51	A	mail.albericjeep.com
208.81.174.56	PTR	mail.leasewaypr.com
208.81.174.56	PTR	webmail.leasewaypr.com
208.81.174.57	A+PTR	jafercorp.com
208.81.174.59	A	mail.rottodiesel.com
208.81.174.59	A	rottodiesel.com
208.81.174.61	A	porschetestdrive.com
208.81.174.64	A	rbconstruction.com
208.81.174.67	A	mail.albericusados.com
208.81.174.67	A	albericusados.com
208.81.174.73	A	imagebuilderspr.com
208.81.174.74	A	gflawpr.com
208.81.174.83	A	myemail.prcinternet.net
208.81.174.83	A	aiprcc.org
208.81.174.89	A	mail.maderera-donestevez.com
208.81.174.91	A	mail.beyogapr.com
208.81.174.92	A	mail.mubagroup.com
208.81.174.92	A	mubagroup.com
208.81.174.96	A	mail.teaminsurancepr.com
208.81.174.98	A	envirolawpr.com
208.81.174.98	A	www.envirolawpr.com
208.81.174.98	A	mail.envirolawpr.com
208.81.174.99	PTR	lumaconstruction.com
208.81.174.106	PTR	haciendatorres.com
208.81.174.109	A	mail.edpanamericanapr.com
208.81.174.109	A	mail.lotoofertas.com
208.81.174.109	A	mail.editorialpanamericana.com
208.81.174.110	PTR	www.hyundaisanjuan.com
208.81.174.110	A	hyundaisanjuan.com
208.81.174.112	PTR	garcialawpr.com
208.81.174.116	A	testdriveaudi.com
208.81.174.117	A	audijourneyforward.com
208.81.174.118	A+PTR	prcomputer.biz
208.81.174.122	A	mail.mavicpr.com
208.81.174.123	A	prcomputerdirect.net
208.81.174.123	A	prcomputerdirect.com
208.81.174.123	A	mail.prcomputerdirect.com
208.81.174.132	PTR	abrahamsalonspa.com
208.81.174.132	A	madereradonestevezpr.com
208.81.174.132	A	eitbuilder.com
208.81.174.133	PTR	editorialpanamericana.com
208.81.174.135	A	www.firstinsurancepr.com
208.81.174.135	A	ftp1.firstinsurancepr.com
208.81.174.141	A+PTR	architect.prcinternet.net
208.81.174.142	A+PTR	mcsassets.com
208.81.174.150	A	capiinc.com
208.81.174.150	A	palastiendas.com
208.81.174.150	A	preaprobado.com
208.81.174.151	PTR	emodernfurniture.com
208.81.174.151	PTR	ofxpr.com
208.81.174.152	A	ponderosapr.com
208.81.174.155	A	bmjportal.com
208.81.174.156	A+PTR	ftp1.bmjportal.com
208.81.174.158	A	ebusiness-sense.com
208.81.174.161	A	museoconstruccion.com
208.81.174.164	A	devel.prcomputer.net
208.81.174.169	A+PTR	libreriavirtualsm.com
208.81.174.169	A	sm-pr.net
208.81.174.173	A	freije.biz
208.81.174.174	A	inducompr.com
208.81.174.175	PTR	prcmailtide.com
208.81.174.176	PTR	plylumber.com
208.81.174.176	A	mail.plylumber.com
208.81.174.181	A	mail.rtairconditioning.com
208.81.174.190	A	abrahamhairsalon.com
208.81.174.190	A	abrahamhairsalonpr.com
208.81.174.219	A	smtp.prcinternet.com
208.81.174.248	A+PTR	bmjfoodspr.com
208.81.174.248	A	mail.bmjfoodspr.com
208.81.174.249	A+PTR	linux.bmjfoodspr.com
208.81.174.252	A	expedition.rbconstruction.com
208.81.175.2	A	brain.ibancapr.com
208.81.175.3	A+PTR	ibancapr.com
208.81.175.3	A+PTR	mail2.ibancapr.com
208.81.175.3	A+PTR	mail.ftccollege.edu
208.81.175.11	PTR	estudiaahora.com
208.81.175.11	PTR	estudiaennational.com
208.81.175.11	PTR	ibancanet.com
208.81.175.14	PTR	webmail.students.edukgroup.com
208.81.175.14	PTR	webmail.students.ibanca.edu
208.81.175.14	PTR	webmail.students.nationalcollegepr.edu
208.81.175.40	A+PTR	citapr.com
208.81.175.40	PTR	flatech.edu
208.81.175.40	A+PTR	www.citapr.com
208.81.175.51	A	dave.edukgroup.com
208.81.175.53	A+PTR	news.nuc.edu
208.81.175.56	A+PTR	ibanca.edukgroup.com
208.81.175.63	A	etoolsdev.edukgroup.com
208.81.175.67	A+PTR	dvr1.edukgroup.com
208.81.175.68	A+PTR	dvr2.edukgroup.com
208.81.175.101	A+PTR	mail.ibancapr.com
208.81.175.102	A+PTR	mail.nuc.edu
208.81.175.103	A+PTR	mail.popac.edu
208.81.175.104	A	mail.daveschool.com
208.81.175.107	A+PTR	mail2.ftccollege.edu