Robtex

Up: 81.16.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 81.16.48.0/21
Down right: 81.16.56.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.16.48.19	A	db04.workxl.de
81.16.48.21	A	mail.workxl.com
81.16.48.21	A	mail.commercexl.com
81.16.48.21	A	commercexl.de
81.16.48.26	A	mail.workxl.com
81.16.48.41	A	overheidsplannen.nl
81.16.48.41	A	bouwplannen-frontend.workxl.de
81.16.48.44	A	mail.wer-baut.de
81.16.49.1	A+PTR	br1.serverpool.net
81.16.49.10	A	serverpool.net
81.16.49.10	A	ns1.serverpool.net
81.16.49.58	A	vpn.mosaik-berlin.de
81.16.49.60	A	intranator.mosaik-berlin.de
81.16.49.67	A	srv01.americandream.de
81.16.49.67	A	hermes.serverpool.net
81.16.49.68	PTR	www.americandream.de
81.16.49.70	A	mail.mvs-ag.de
81.16.49.70	A	imap.mvs-ag.de
81.16.49.81	PTR	server2.server-zone.net
81.16.49.81	A	sportscope.de
81.16.49.81	A	mail.time2send.de
81.16.49.96	A	mail.dunkelbund.org
81.16.49.98	PTR	server.hochzeitsservice.de
81.16.49.98	A	www.die-familienfeier.de
81.16.49.98	A	mail.hochzeitsbund.de
81.16.49.99	PTR	websrv.mosaik-berlin.de
81.16.49.113	A	mail.webmednews.net
81.16.49.113	A	webmednews.org
81.16.49.113	A	mail.webmednews.org
81.16.49.129	PTR	k1.serverpool.net
81.16.49.129	A	mail.jemah.eu
81.16.49.129	A	mail.swing-up-die-big-band.de
81.16.49.130	PTR	mail.serverpool.net
81.16.49.132	PTR	mail.serverpool.net
81.16.49.146	A	mail.mikrowellentrocknungsgeraete.at
81.16.49.146	A	mail.microwellen-trocknung.info
81.16.49.146	A	mikrowellen-trocknungssysteme.de
81.16.49.166	A	*.spsandcad.com
81.16.49.166	A	spsandcad.com
81.16.49.197	A+PTR	srv01.oh-wow.de
81.16.49.197	A	oh-wow.ch
81.16.49.197	A	ns.ohwow.de
81.16.49.200	A	www.die-familienfeier.de
81.16.49.200	A	mail.hochzeitsbund.de
81.16.49.200	A	*.die-familienfeier.de
81.16.49.207	A	americandream.de
81.16.49.207	A	usvisaservice.de
81.16.49.208	A	ip.hgm-press.de
81.16.49.209	A	americandream.de
81.16.49.209	A	usvisaservice.de
81.16.49.211	A	mail.deutscher-kuenstlerbund.de
81.16.49.212	PTR	web02.hosting.serverpool.net
81.16.49.224	A	win-8s782dqljce.americandream.de
81.16.49.226	A	herrenpullover-kaufen.de
81.16.49.226	A	blickwert.de
81.16.49.226	A	hgmpress-celebrities.de
81.16.49.232	PTR	www.netsource.de
81.16.49.240	A+PTR	mail.paulabee.de
81.16.49.240	A	paulabee.de
81.16.49.241	A+PTR	mail.netsource.de
81.16.49.241	A	mail.n-source.org
81.16.50.0	PTR	0.50.16.81.bln-net.co.uk
81.16.50.9	A	mail.yuanmingnet.org
81.16.50.21	A	certserver-demo.zertificon.com
81.16.50.21	A	backbone-demo.zertificon.com
81.16.50.23	A	messenger-demo.zertificon.com
81.16.50.24	A	station-demo.zertificon.com
81.16.50.36	A	hydra.zertificon.com
81.16.50.37	A	dir.bridge-ca.org
81.16.50.37	A	zack.zertificon.com
81.16.50.39	A	globaltrustpoint.com
81.16.50.56	A	www.kuechenathome.de
81.16.50.56	A	mail.zukunftsphilologie.de
81.16.50.56	A	pr3connect.com
81.16.50.69	A	mail.uplusz.de
81.16.50.69	A	uplusz.de
81.16.50.71	A	spektrum-steuerberatung.de
81.16.50.71	A	mail.spektrum-steuerberatung.de
81.16.50.107	A	ns2.q-control.de
81.16.50.111	A	ns12.abra.de
81.16.50.111	A	ns12.unimessage.net
81.16.50.211	A	mail.speed-24.com
81.16.50.217	A	mail.trikebike.de
81.16.50.217	A	napoleon.provider-world.biz
81.16.50.217	A	mx1.thw-systems.com
81.16.50.224	A	diabetestagebuch.de
81.16.50.224	A	*.diabetestagebuch.de
81.16.50.228	A	artichoke-the-project.com
81.16.50.228	A	einstundjetzt.com
81.16.50.247	A	bwl-tipps.de
81.16.51.14	A	iq-medizin.com
81.16.51.14	A	iq-medizin.org
81.16.51.14	A	iq-medizin.ch
81.16.51.80	A	s1.hostloco.com
81.16.51.82	A	s2.hostloco.com
81.16.51.84	A	s3.hostloco.com
81.16.51.86	A	s4.hostloco.com
81.16.51.96	A+PTR	s9.hostloco.com
81.16.51.104	A	s13.hostloco.com
81.16.51.123	A	s14.hostloco.com
81.16.52.15	A	tequila-steakhaus.de
81.16.52.21	A	martinland.org
81.16.53.16	A	mailfw.eeo-gmbh.de
81.16.53.16	A	mailfw.eggers-druck.de
81.16.53.53	A	mail.richwebb.eu
81.16.53.53	A	ilovemydorf.com
81.16.53.53	A	mail.drumsplusx.de
81.16.54.5	A	mail.tucan-products.de
81.16.54.5	A	webserver.progra.de
81.16.54.5	A	3dkunstraum.de
81.16.54.62	A	wellnessinthueringen.com
81.16.54.62	A	mail.wellnesshotel-in-deutschland.com
81.16.54.62	A	mail.wandkratzbaum.com