Robtex

Up: 81.94.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 81.94.48.0/23
Down right: 81.94.50.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.94.48.31	PTR	031-048-094-081.as39912.net
81.94.48.32	PTR	net4you-gateway-kk.as39912.net
81.94.48.62	A+PTR	whatsup.i3b.at
81.94.48.63	PTR	whatsup.i3b.at
81.94.48.81	PTR	dns5.dic.at
81.94.48.82	PTR	dns4.dic.at
81.94.49.114	A+PTR	mail.faudon.at
81.94.49.122	PTR	mail.lexerimmo.at
81.94.49.122	A	mail.lexer-immobilien.at
81.94.49.122	A	mail.lexerimmobilien.at
81.94.49.154	A+PTR	mail.dirnbacher.at
81.94.49.196	A	srv2.ge.org
81.94.49.197	A	srv3.ge.org
81.94.49.245	PTR	245-049-094-081.as39912.net
81.94.49.245	A	dns.wana.at
81.94.49.246	A+PTR	mailserver.wana.at
81.94.49.246	A	mail.rechtsanwalt-aigner.at
81.94.49.247	PTR	247-049-094-081.as39912.net
81.94.49.247	A	wana.at
81.94.49.248	PTR	248-049-094-081.as39912.net
81.94.49.248	A	die-baumpfleger.at
81.94.49.248	A	eezyapp.ch
81.94.49.250	PTR	250-049-094-081.as39912.net
81.94.49.251	PTR	mail.teletronic.at
81.94.50.9	PTR	www.smilex.at
81.94.50.9	A	dsx-music.at
81.94.50.9	A	mail.bernaich.at
81.94.50.18	PTR	mail-relay.bollenberger.at
81.94.50.18	A	mail.bollenberger.at
81.94.50.18	A	mail.bollenberger.com
81.94.51.3	A	mediaproxy01.technix.at
81.94.51.4	A	mediaproxy02.technix.at
81.94.51.18	A	voip01.technix.at
81.94.51.19	A+PTR	voip02.technix.at
81.94.51.20	A+PTR	sip.technix.at
81.94.51.20	A	stun.technix.at
81.94.51.34	A	db01.technix.at
81.94.51.35	A+PTR	db02.technix.at
81.94.51.36	A	pop3imap01.technix.at
81.94.51.36	A	pop3imap01.ascus-telecom.com
81.94.51.37	PTR	mailbox01.ascus-telecom.com
81.94.51.42	A	voip-gw03.technix.at
81.94.51.48	PTR	webhosting-redir.technix.at
81.94.51.48	A	globo-lighting.at
81.94.51.48	A	swan.at
81.94.51.50	PTR	ns01.technix.at
81.94.51.51	PTR	dns04.technix.at
81.94.51.54	A	dns01.technix.at
81.94.51.55	A	freebsd02.technix.at
81.94.51.56	PTR	www.ascus-telecom.com
81.94.51.56	A	ascus-telecom.cz
81.94.51.56	A	i-net-work.at
81.94.51.58	PTR	webhosting01.technix.at
81.94.51.60	A	syslog01.technix.at
81.94.51.60	A	ruessel.technix.at
81.94.51.61	A	sun01.ascus-telecom.com
81.94.51.61	A	linksys01.technix.at
81.94.51.70	PTR	mail.helpit.at
81.94.51.84	PTR	mx2.pewag.com
81.94.51.142	PTR	ns02.ostry.com
81.94.51.164	A	igor.easyline.at
81.94.51.203	PTR	akamai.vie.as39912.net
81.94.51.204	PTR	akamai.vie.as39912.net
81.94.51.209	PTR	akamai.vie.as39912.net