Robtex

Up: 81.94.48.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 81.94.50.0/24
Down right: 81.94.51.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
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
81.94.51.50	A	ns1.risnet.at
81.94.51.50	A	karintia.eu
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
81.94.51.58	A	upperneo.de
81.94.51.58	A	valbene.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
81.94.51.63	A	kropfitsch.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