Robtex

Up: 31.25.48.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 31.25.48.0/25
Down right: 31.25.48.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
31.25.48.4	A	www.kabelsurfer.com
31.25.48.4	A	superkabel.de
31.25.48.4	A	kabelsurfer.com
31.25.48.9	A	www.smartfeedads.com
31.25.48.11	A+PTR	mx01.xworks.net
31.25.48.13	A+PTR	smtp-out01.xworks.net
31.25.48.15	A+PTR	smtp-out03.mediabeam.com
31.25.48.15	A	imap.kabelmail.de
31.25.48.17	A	mx.xworks.net
31.25.48.21	A	www.adshopping.net
31.25.48.21	A	adshopping.org
31.25.48.21	A	adshopping.info
31.25.48.23	A	imap.stadtmail.com
31.25.48.28	A+PTR	smtp.directbox.com
31.25.48.41	A	clevermail.com
31.25.48.46	A	ahaus.net
31.25.48.46	A	ahaus.stadtmail.com
31.25.48.49	A	paderborn.com
31.25.48.51	A	dueren.net
31.25.48.51	A	www.dueren.net
31.25.48.53	A	stadtnetz.com
31.25.48.55	A	directbox.it
31.25.48.55	A	direct-box.com
31.25.48.55	A	directbox.co
31.25.48.57	A	ivg.auction
31.25.48.57	A	www.ivg.auction
31.25.48.57	A	ivg-kuepers.de
31.25.48.58	A+PTR	dns3.mediabeam.com
31.25.48.59	A	api.xworks.net
31.25.48.65	PTR	kdg-proxy1.mediabeam.com
31.25.48.65	A	xworks365.com
31.25.48.66	PTR	relay02.directbox.com
31.25.48.66	A	smtp.xworks.net
31.25.48.66	A	imap.xworks.net
31.25.48.70	PTR	www.directbox.com
31.25.48.70	A	cloudmail.de
31.25.48.70	A	directsms.de
31.25.48.74	PTR	www.clockx.com
31.25.48.74	A	mailbeamer.de
31.25.48.74	A	www.mailbeamer.com
31.25.48.82	PTR	dmz-dc1.mediabeam.com
31.25.48.82	A	ahausernothilfe.de
31.25.48.82	A	ahauser-nothilfe.de
31.25.48.85	A+PTR	dns1.mediabeam.com
31.25.48.85	A	dns.mediabeam.eu
31.25.48.87	PTR	bugtrack.mediabeam.com
31.25.48.87	A	stadtnews.de
31.25.48.87	A	spamshield.de
31.25.48.88	PTR	clh.mediabeam.com
31.25.48.89	A	www.x-pad.net
31.25.48.92	PTR	sql2.mediabeam.com
31.25.48.94	PTR	www.x-pad.de
31.25.48.95	PTR	relay07.directbox.com
31.25.48.95	A	www.mediabeam.com
31.25.48.95	A	www.stadtmail.com
31.25.48.97	PTR	linuxweb2.mediabeam.com
31.25.48.97	A	webruf.net
31.25.48.97	A	smartfeedad.de
31.25.48.99	PTR	service.mediabeam.com
31.25.48.101	A	sso.kabelmail.de
31.25.48.116	A	xworks365.com
31.25.48.116	A	xworks.de
31.25.48.116	A	xworks.net
31.25.48.124	A+PTR	newsletter.kabelmail.de
31.25.48.134	PTR	sdc.mediabeam.com
31.25.48.213	A+PTR	smtp-out213.xworks.net
31.25.48.214	A+PTR	smtp-out214.xworks.net
31.25.48.215	A+PTR	smtp-out215.xworks.net
31.25.48.216	A+PTR	smtp-out216.xworks.net
31.25.48.217	A+PTR	smtp-out217.xworks.net
31.25.48.218	PTR	smtp-out218.xworks.net
31.25.48.220	A+PTR	smtp-out220.xworks.net
31.25.48.221	A+PTR	smtp-out221.xworks.net