Robtex

Up: 81.16.104.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 81.16.104.0/25
Down right: 81.16.104.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.16.104.2	A	mail.willesmoore.com
81.16.104.2	A	mail.willesandmoore.com
81.16.104.2	A	hg-trade.at
81.16.104.3	A+PTR	zugang.mein-mac.at
81.16.104.3	A	mail.power-limit.at
81.16.104.5	A+PTR	www.list.or.at
81.16.104.5	A	list.or.at
81.16.104.5	A	mail.list.or.at
81.16.104.9	A	thewickedandthedamned.org
81.16.104.9	A	handsofblue.org
81.16.104.18	A	systemmail.c-a-c.at
81.16.104.19	A+PTR	1360029715.d-dsl.at
81.16.104.19	A	mail.hechenblaickner.com
81.16.104.24	A+PTR	gw.netconnect.at
81.16.104.24	A	smtp.netconnect.at
81.16.104.50	A+PTR	1360029746.d-dsl.at
81.16.104.50	A	slowenisch.at
81.16.104.50	A	msk-informatik.at
81.16.104.51	A+PTR	1360029747.d-dsl.at
81.16.104.56	A+PTR	1360029752.d-dsl.at
81.16.104.61	A+PTR	apricot.mailcluster.eu
81.16.104.61	A	sukup.at
81.16.104.61	A	virtuellesarbeiten.com
81.16.104.64	A	sbg.xx.vu
81.16.104.86	PTR	1360029782.d-dsl.at
81.16.104.86	A	root.denkn.de
81.16.104.86	A	home.denkn.at
81.16.104.95	PTR	1360029791.d-dsl.at
81.16.104.95	A	gumoku.net
81.16.104.95	A	mail.gumoku.net
81.16.104.108	PTR	gateway.pekarek.at
81.16.104.108	A	router.pekarek.at
81.16.104.118	A+PTR	1360029814.d-dsl.at
81.16.104.121	A+PTR	www.daniel-baumann.at
81.16.104.121	A	daniel-baumann.at
81.16.104.121	A	mail.dbphp.at
81.16.104.131	PTR	macsrv.kiwimail.at
81.16.104.131	A	infinitelife.at
81.16.104.131	A	pmac-productions.com
81.16.104.135	A+PTR	1360029831.d-dsl.at
81.16.104.139	PTR	1360029835.d-dsl.at
81.16.104.139	A	carmofin.com
81.16.104.139	A	home.das-werkstatt.com
81.16.104.179	PTR	1360029875.d-dsl.at
81.16.104.179	A	dermichael.com
81.16.104.179	A	mail.dermichael.com
81.16.104.230	A	armin.dic.at
81.16.104.245	A	mail.ihahn.net
81.16.104.245	A	ihahn.net
81.16.104.246	A	mail.communicationdesign.net
81.16.104.246	A	mail.akademiebios.at
81.16.104.247	A	mail.openlaws.com
81.16.104.249	A+PTR	1360029945.d-dsl.at
81.16.104.249	A	mbogner.net
81.16.104.251	A	mail.neovest.at
81.16.104.251	A	remote.neovest.at