Robtex

Up: 212.55.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 212.55.144.0/21
Down right: 212.55.152.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
212.55.145.42	A	www.anac.pt
212.55.145.42	A	www.inac.pt
212.55.145.42	A	caacl.org
212.55.145.73	A	www.sitio.anq.gov.pt
212.55.145.73	A	www.en.anq.gov.pt
212.55.145.73	A	srvweb01.anqep.gov.pt
212.55.145.74	PTR	srvmail02.anq.gov.pt
212.55.146.49	A+PTR	mail.ferconsult.pt
212.55.146.66	A	mail2.selenis.pt
212.55.146.81	PTR	mail.solverde.pt
212.55.146.121	A+PTR	ns2.aibili.pt
212.55.146.121	A	evicr.net
212.55.146.122	PTR	aibili.pt
212.55.146.122	A	ns.aibili.pt
212.55.146.122	A	mail.aibili.pt
212.55.146.123	PTR	ext123.aibili.pt
212.55.146.130	A+PTR	inet.expresso24.pt
212.55.146.130	A	inet.amera.pt
212.55.146.130	A	dns.expresso24.pt
212.55.146.132	PTR	webmail.expresso24.pt
212.55.147.8	A	ns2.csanet.pt
212.55.147.8	A	ns2.acornet.pt
212.55.147.8	A	ns2.acoreana.pt
212.55.147.130	PTR	regio.cm-viladoconde.pt
212.55.149.8	PTR	srvmailcmg.cm-gaia.pt
212.55.150.1	PTR	ftp.secil.pt
212.55.150.2	PTR	mail.secil.pt
212.55.150.3	PTR	ns.secil.pt
212.55.150.3	A	ns.semapa.pt
212.55.150.4	PTR	s19.secil.pt
212.55.150.4	A	ns.secilmartinganca.pt
212.55.150.4	A	mail.secilbetao.pt
212.55.150.17	A	mail.semapa.pt
212.55.150.40	A+PTR	s16.secil.pt
212.55.150.196	PTR	mail.sportmultimedia.pt
212.55.150.196	A	videos.sportmultimedia.pt
212.55.150.197	PTR	mail.sportmultimedia.pt
212.55.150.197	A	videos.sportmultimedia.pt
212.55.150.198	PTR	mail.sportmultimedia.pt
212.55.150.198	A	videos.sportmultimedia.pt
212.55.150.199	A	videos.sportmultimedia.pt
212.55.150.200	PTR	mail.sportmultimedia.pt
212.55.150.214	PTR	mail.sportmultimedia.pt
212.55.150.214	A	feeds.sporttv.pt
212.55.150.215	PTR	mail.sportmultimedia.pt
212.55.150.215	A	feeds.sporttv.pt
212.55.150.224	PTR	mail.sportmultimedia.pt
212.55.150.224	A	ns3.ardil.pt
212.55.150.224	A	sheitan.ardil.pt
212.55.150.234	PTR	mail.sportmultimedia.pt
212.55.150.235	PTR	mail.sportmultimedia.pt
212.55.150.241	PTR	mail.sportmultimedia.pt
212.55.150.241	A	arwen.sportmultimedia.pt
212.55.150.242	PTR	mail.sportmultimedia.pt
212.55.150.242	A	aragorn.sportmultimedia.pt
212.55.150.242	A	ns2.fcporto.pt
212.55.150.253	PTR	mail.sportmultimedia.pt
212.55.150.254	A	login.sporttv.pt
212.55.151.3	A+PTR	pc3.forum.telepac.pt
212.55.151.5	A	pc5.forum.telepac.pt
212.55.151.9	A	pc9.forum.telepac.pt
212.55.151.10	A	pc10.forum.telepac.pt
212.55.151.18	A	pc18.forum.telepac.pt
212.55.151.20	A	pc20.forum.telepac.pt
212.55.151.21	A	pc21.forum.telepac.pt
212.55.151.22	A	pc22.forum.telepac.pt
212.55.151.32	A	pc32.forum.telepac.pt
212.55.151.34	A+PTR	pc34.forum.telepac.pt
212.55.151.37	A	pc37.forum.telepac.pt
212.55.151.38	A	pc38.forum.telepac.pt
212.55.151.49	A	pc49.forum.telepac.pt
212.55.151.129	PTR	ccb-intranet.ccb.pt
212.55.152.154	A	www.catermar.org
212.55.154.21	A	relay1.ptmail.sapo.pt
212.55.154.21	A	relay.ptm.pt
212.55.154.22	A	relay.ptm.pt
212.55.154.22	A	relay2.ptmail.sapo.pt
212.55.154.23	A	relay.ptm.pt
212.55.154.23	A	relay3.ptmail.sapo.pt
212.55.154.24	A	relay.ptm.pt
212.55.154.26	A	relay.ptm.pt
212.55.154.32	PTR	ptmail32.ptmail.sapo.pt
212.55.154.33	PTR	ptmail33.ptmail.sapo.pt
212.55.154.36	A	mx2.sportmultimedia.pt
212.55.154.36	A	mx1.cpro.pt
212.55.154.36	A	mx2.cpro.pt
212.55.154.48	A	webmail.sapo.pt
212.55.154.48	A	mail.sapo.tl
212.55.154.48	A	mail.sapo.cv
212.55.154.116	A	w7.webmail.telepac.pt
212.55.154.126	A	ptmail.sapo.pt
212.55.154.130	A	cache13.stormap.sapo.pt
212.55.154.131	A	cache01.stormap.sapo.pt
212.55.154.133	A	cache03.stormap.sapo.pt
212.55.154.137	A	cache09.stormap.sapo.pt
212.55.154.147	A	cache04.stormap.sapo.pt
212.55.154.147	A	cache10.stormap.sapo.pt
212.55.154.148	A	cache12.stormap.sapo.pt
212.55.154.148	A	cache06.stormap.sapo.pt
212.55.154.174	A	rs1.telepac.pt
212.55.154.190	A	rs2.telepac.pt
212.55.154.194	A	ns2.sapo.ao
212.55.154.194	A	a.ns.144.13.213.in-addr.arpa
212.55.154.194	A	ns2.dev.sapo.pt
212.55.154.195	PTR	nagios.co.sapo.pt
212.55.154.202	A	a.ns.144.13.213.in-addr.arpa
212.55.154.202	A	a.ns.145.13.213.in-addr.arpa
212.55.155.37	PTR	mail.fbb.pt
212.55.155.165	PTR	barracuda.ramada.pt
212.55.159.134	PTR	mail.coindu.com