Robtex

Up: 194.33.120.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 194.33.121.0/25
Down right: 194.33.121.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
194.33.121.20	A+PTR	ftp2.cosus.de
194.33.121.20	A	ftp.cosus.de
194.33.121.26	A+PTR	secu.stevic.de
194.33.121.26	A	mail.stevic.de
194.33.121.26	A	mx.cosus.org
194.33.121.32	A	accessgateway.cosus.de
194.33.121.42	A	support.cosus.de
194.33.121.65	PTR	edge.cosus.de
194.33.121.65	A	mail.neckarsolar.de
194.33.121.65	A	mailcache.mycosus.de
194.33.121.66	PTR	edge2.cosus.de
194.33.121.66	A	mail.neckarsolar.de
194.33.121.66	A	mailcache.mycosus.de
194.33.121.67	A+PTR	mgw.cosus.de
194.33.121.67	A	mail.cosus.de
194.33.121.68	A	mail.cosus.de
194.33.121.68	A	mgw.cosus.de
194.33.121.101	A+PTR	emgw.cosus.de
194.33.121.101	A+PTR	emgw1.cosus.de
194.33.121.103	A+PTR	emgw2.cosus.de
194.33.121.103	A+PTR	emgw.cosus.de
194.33.121.112	A	windowsupdate.cosus.de
194.33.121.125	PTR	smtp-pmm.cosus.de
194.33.121.125	A	smtp.stg.cosus.de
194.33.121.129	A+PTR	srv1-stg.stg.cosus.de
194.33.121.129	A	ns1.cosus.de
194.33.121.130	PTR	srv2-stg.stg.cosus.de
194.33.121.131	A+PTR	server.mycosus.de
194.33.121.131	A	mycosus.de
194.33.121.132	PTR	proxy.cosus.de
194.33.121.189	A	server.guttroff.cosus.net
194.33.121.221	PTR	appbox.graesslin.de
194.33.121.249	A	exchange.cosus.de