Robtex

Up: 80.172.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 80.172.0.0/17
Down right: 80.172.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
80.172.0.1	A	adsl-sul01-1-1.vianw.pt
80.172.0.2	A	adsl-sul01-1-2.vianw.pt
80.172.0.46	A	adsl-sul01-1-46.vianw.pt
80.172.0.75	A	adsl-sul01-1-75.vianw.pt
80.172.1.2	A+PTR	adsl-sul01-2-2.vianw.pt
80.172.1.3	A+PTR	adsl-sul01-2-3.vianw.pt
80.172.1.24	A	adsl-sul01-2-24.vianw.pt
80.172.1.33	A	adsl-sul01-2-33.vianw.pt
80.172.24.185	A	adsl-sul01-248.business.vianw.pt
80.172.24.243	A	mail.cinfa.pt
80.172.25.41	A	traducta.com.es
80.172.25.71	A	mx1.colours.pt
80.172.25.76	A	mx3.colours.pt
80.172.25.148	A	mailserver.nova-etapa.pt
80.172.26.22	A	mail.deftiom.com
80.172.26.22	A	*.deftpt.com
80.172.26.22	A	www.deftpt.com
80.172.27.44	A	incawmsrv.incasis.com
80.172.27.44	A	mail.inca.pt
80.172.27.66	A	mail2.magisom.pt
80.172.27.243	A	mail.fsa-advogados.pt
80.172.30.33	PTR	mail.cm-azambuja.pt
80.172.30.34	A	biblio.cm-azambuja.pt
80.172.32.1	A+PTR	adsl-sul02-1-1.vianw.pt
80.172.32.2	A+PTR	adsl-sul02-1-2.vianw.pt
80.172.32.3	A	adsl-sul02-1-3.vianw.pt
80.172.32.4	A	adsl-sul02-1-4.vianw.pt
80.172.48.5	A	mail.fdassociados.pt
80.172.48.5	A	remote.fdassociados.pt
80.172.48.182	A	smtp.jardim-vista.com
80.172.48.182	A	mail.jardim-vista.com
80.172.51.78	A	mail.areiasdoseixo.pt
80.172.51.78	A	mail.areiasdoseixo.com
80.172.56.10	A	a3.cnet.pt
80.172.56.32	A	mail.gesseven.pt
80.172.56.62	A	mail.gesseven.pt
80.172.56.123	A	gesseven.dyndns.org
80.172.56.215	A	a3pt.ddns.net
80.172.56.244	A	gesseven.dyndns.org
80.172.128.1	A	adsl-norte01-1-1.vianw.pt
80.172.128.192	A	adsl-norte01-1-192.vianw.pt
80.172.140.9	A	mail.jornalfiscal.pt
80.172.140.20	A	epcjc.net
80.172.140.22	A	mail.net-sa.pt
80.172.140.24	A	mail.emasel.pt
80.172.142.13	A	mail.prevoir.pt
80.172.148.235	PTR	mail2.serlima.pt
80.172.148.235	PTR	smtp2.serlima.pt
80.172.156.121	A	flordaria.pt
80.172.156.150	A	mx1.muroplas.pt
80.172.156.150	A	mail.muroplas.pt
80.172.158.20	PTR	input-vz-w2k8.input.pt
80.172.211.70	A	vpn-pt.biocol-lab.com
80.172.211.94	A	macop.pt
80.172.211.94	A	mail.macop.pt
80.172.211.94	A	retalgrup.com
80.172.213.2	A	mail.saude-respiracao.net
80.172.213.2	A	mx1.saude-respiracao.net
80.172.213.2	A	mx1.vvlearning.net
80.172.221.15	A	dynethic.pt
80.172.221.15	A	ns1.dynethic.pt
80.172.221.20	A+PTR	mail.medianext.pt
80.172.221.20	A	jornaldentistry.com
80.172.221.36	PTR	vmcus31960.claranet.pt
80.172.222.18	A	mx1.cloudfire.pt
80.172.222.130	A	palatine.fr
80.172.222.130	A	auladeimpacto.com
80.172.222.130	A	rue89-new.typhon.net
80.172.222.140	A	palatine.fr
80.172.222.140	A	auladeimpacto.com
80.172.222.140	A	rue89-new.typhon.net
80.172.224.2	PTR	yeti.gtinformatica.pt
80.172.224.2	A	d.ns.artenumerica.net
80.172.224.2	A	limo.pt
80.172.224.3	PTR	gryphon.artenumerica.net
80.172.224.4	PTR	phoenix.artenumerica.net
80.172.224.5	PTR	caeiro.multipessoa.net
80.172.225.0	PTR	webtuga.pt
80.172.225.1	PTR	gw225-1.redewt.net
80.172.225.3	A	suporte.webtuga.pt
80.172.225.4	A	mercal.biz
80.172.225.4	A	mercal.com.pt
80.172.225.9	A	mx2.wtservers.com
80.172.226.1	A+PTR	ns1.sysvalue.com
80.172.226.2	A+PTR	ns2.sysvalue.com
80.172.226.3	PTR	relay.sysvalue.com
80.172.226.3	A	viasyssmtp01.sysvalue.com
80.172.226.3	A	smtp.sysvalue.com
80.172.226.4	PTR	relay.sysvalue.com
80.172.226.4	A	smtp.sysvalue.com
80.172.227.2	PTR	terra.wv.pt
80.172.227.2	A	studiomagellan.com
80.172.227.2	A	douroprimetours.com
80.172.227.10	PTR	saturno.dnssaturno.com
80.172.227.11	PTR	urano.dnsurano.com
80.172.228.133	A	ieminho.pt
80.172.228.133	A	nerba.pt
80.172.228.133	A	mail.ieminho.pt
80.172.230.1	A	0-25.230.172.80.in-addr.arpa
80.172.230.2	A	gw.dot2web.com
80.172.230.4	A	crseg.com
80.172.230.4	A	crseg.pt
80.172.230.26	A	mail.olivertek.pt
80.172.231.1	A+PTR	ns1.dreamware.pt
80.172.231.1	PTR	ns3.zapp.pt
80.172.231.2	PTR	ns3.dreamware.pt
80.172.231.2	A	ns2.dreamware.pt
80.172.231.102	A	mail.dreamware.pt
80.172.231.102	A	mailcorp.dreamware.pt
80.172.232.4	A	ns2.f13pc.com
80.172.232.4	A	mail.f13pc.com
80.172.232.4	A	servidor.f13pc.com
80.172.233.4	PTR	telemoveis.com
80.172.233.4	A	vmstd23456.claranet.pt
80.172.233.4	A	mail.carlosnogueira.com
80.172.233.5	PTR	vmcus24217.claranet.pt
80.172.233.117	A	hostmaster.academiamilitar.pt
80.172.234.2	PTR	aragorn.ptwebserv.net
80.172.234.4	PTR	samwise.ptwebserv.net
80.172.234.5	A	ocaseirinho.pt
80.172.234.5	A	industrialnet.biz
80.172.234.5	A	agroprojectos.com
80.172.234.14	A	substratu.com
80.172.235.1	PTR	server1.merinemedia.com
80.172.235.1	A	*.garage.pt
80.172.235.1	A	garage.pt
80.172.235.2	A+PTR	server1.wecreateyou.biz
80.172.235.3	PTR	ws1.it2care.com
80.172.236.15	PTR	mx1.aprose.pt
80.172.236.27	A	osca.pt
80.172.236.27	A	asalmed.pt
80.172.236.27	A	aamatilde.pt
80.172.236.30	PTR	aspconsultingit.net
80.172.240.2	PTR	srv002.esoterica.pt
80.172.240.2	A	ferroactivo.com.pt
80.172.240.2	A	bestdecision.pt
80.172.241.10	A	rdns1.esoterica.pt
80.172.241.10	A	transferencia-dinheiro.eu
80.172.241.13	A	www.labacustica.com
80.172.241.14	A	mail.arquipeople.pt
80.172.242.102	A	ns1.lunacloud.com
80.172.242.103	A	ns2.lunacloud.com
80.172.243.4	A	c1.fixeads.com
80.172.243.10	A	faturavirtual.com
80.172.243.11	A	mail.leiloes.net
80.172.243.11	A	*.leiloes.net
80.172.244.4	PTR	sneggle.com
80.172.244.4	A	mail.sneggle.com
80.172.244.12	A	milivintiquatro.pt
80.172.244.12	A	yottalife.pt
80.172.244.12	A	yottalife.com
80.172.244.17	PTR	maya.digama.net
80.172.252.3	PTR	cpanel01.vipvoz.com
80.172.252.3	A	vipvoz.net
80.172.252.3	A	sophiakah.co.uk
80.172.252.4	PTR	vipmail.vipvoz.com
80.172.252.7	PTR	aspam1.vipvoz.com
80.172.253.8	A	prt24.wl-dns.com
80.172.253.12	PTR	postal.servicos.biz
80.172.253.12	A	mail.olivertek.pt
80.172.253.12	A	uva.dot2web.com
80.172.254.5	A+PTR	connex.pt
80.172.254.5	A	mail.rochacarvao.com
80.172.254.5	A	mail.connex.pt
80.172.255.1	A+PTR	gw1watch.widespace.pt
80.172.255.2	PTR	2-255-172-80.dnspt.net
80.172.255.3	PTR	dns2.dnspt.net
80.172.255.4	A	ns1.widepanel.net
80.172.255.4	A	ns1.widespace.ws
80.172.255.4	A	ns1.liderteam.net