Robtex

Up: 81.3.22.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 81.3.23.0/25
Down right: 81.3.23.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.3.23.2	PTR	www.hostway.de
81.3.23.2	A	mail.serverservices.de
81.3.23.2	A	server-service.de
81.3.23.3	A+PTR	support.hostway.de
81.3.23.6	PTR	www.hostway.fr
81.3.23.6	A	hwsw02.hostway.fr
81.3.23.6	A	hostmaster.hostway.fr
81.3.23.8	A	order.hostway.de
81.3.23.18	PTR	ben2003.gastgeber.net
81.3.23.18	A	senguel.com
81.3.23.18	A	gastgebernet.de
81.3.23.19	A	mitwohnzentrale.org
81.3.23.20	A	fewo-baechle.de
81.3.23.26	A	stoexen.it
81.3.23.50	A	www.heinrich-wein.de
81.3.23.50	A	paramap.de
81.3.23.50	A	nothof-statik.de
81.3.23.58	A	mail.zencho.net
81.3.23.58	A	zencho.net
81.3.23.59	A	robert-weidlich.de
81.3.23.59	A	xnis.de
81.3.23.59	A	fead.me
81.3.23.60	A	robert-weidlich.de
81.3.23.60	A	fead.me
81.3.23.75	A	pk-test.postbank.de
81.3.23.82	PTR	lw-csi2.csiweb.de
81.3.23.82	A	waldt-galabau.de
81.3.23.82	A	menn-werbetechnik.com
81.3.23.86	PTR	s-csi3.csiweb.de
81.3.23.86	A	dentsecur.eu
81.3.23.86	A	www.villa-sonnenberg.de
81.3.23.90	PTR	smtp-in.infra.siteprotect.eu
81.3.23.130	A	mailnl.host-networx.com
81.3.23.131	A	weitersagen.at
81.3.23.131	A	bestselling.at
81.3.23.133	A	www.host-networx.com
81.3.23.133	A	host-networx.com
81.3.23.189	A	checkmail.at
81.3.23.195	A	srv1.hotelbb.de
81.3.23.202	PTR	mailingservice.frauida.at
81.3.23.202	A	ewo.com
81.3.23.202	A	andreasschett.at
81.3.23.203	PTR	srv01.herrfranz.com
81.3.23.203	A	ewo.com
81.3.23.203	A	toxntax.com
81.3.23.204	A	makamuri.com
81.3.23.204	A	franui.at
81.3.23.204	A	*.franui.at
81.3.23.205	PTR	mailingservice.frauida.at
81.3.23.205	A	yellowsportshop.com
81.3.23.205	A	yellowsportshop.at
81.3.23.206	PTR	mailingservice.frauida.at
81.3.23.206	A	www.kunstraum-innsbruck.at
81.3.23.206	A	gabriele-reiterer.com
81.3.23.210	PTR	wolfrum4.wolfrum.de
81.3.23.210	A	mail.annetteundklaus.de
81.3.23.210	A	annette-und-klaus.de
81.3.23.211	A	franken-tipps.de
81.3.23.211	A	*.frankentipps.de
81.3.23.211	A	coburg-veranstaltungen.de
81.3.23.218	PTR	esxi01.apeland.de
81.3.23.218	A	tuireisewelt.de
81.3.23.218	A	europe.xxlpix.net
81.3.23.222	A	mail.31134.de
81.3.23.222	A	31134.de
81.3.23.234	PTR	server1.iftra.de
81.3.23.234	A	*.appspot.com--www.nbd.com.cn
81.3.23.234	A	deutsches-seniorenportal.com