Robtex

Up: 81.7.208.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 81.7.216.0/22
Down right: 81.7.220.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.7.220.36	PTR	mailgw-bcs.hp-net.de
81.7.220.133	A	atelko.net
81.7.220.133	A	atelko.ch
81.7.220.133	A	atelcoelektronik.biz
81.7.220.137	A	www.atelco.de
81.7.220.139	A	anobo.dk
81.7.220.139	A	mobile-freedom.at
81.7.220.139	A	just4mobility.de
81.7.220.144	A	www.anobo.de
81.7.220.145	A	av-components.eu
81.7.220.145	A	avelektronic.at
81.7.220.145	A	avelektronix.eu
81.7.220.152	A	www2.hardwareversand.de
81.7.220.154	A	www.hardwareversand.de
81.7.220.154	A	hardwareversand.de
81.7.220.162	A	justintime-logistics.de
81.7.220.188	PTR	smtp.amaris.de
81.7.220.220	A	mail.hdv-darmstadt.de
81.7.220.220	A	mail2.hdv-darmstadt.de
81.7.220.225	PTR	deei-itwdnex01.great-art.net
81.7.220.225	PTR	mail.great-art.net
81.7.220.225	A	gerstaecker.gr
81.7.220.234	A	ns1.twog.de
81.7.220.235	A	mx1.twog.de
81.7.221.1	A+PTR	gw-t-systems.warema.de
81.7.221.4	A+PTR	fw.warema.de
81.7.221.22	A	gw-ipsec-china.warema.de
81.7.221.35	PTR	mx01.warema.de
81.7.221.35	A	mx.warema.de
81.7.221.35	A	mywarema.com
81.7.221.70	PTR	www.keb.de
81.7.221.70	A	portal.keb.de
81.7.221.71	PTR	mail1.keb.de
81.7.221.72	PTR	mail2.keb.de
81.7.221.75	PTR	www.keb.de
81.7.221.75	A	keb-antriebstechnik.de
81.7.221.75	A	keb.ru
81.7.221.90	A	connect.keb.de
81.7.221.91	A	mail.keb.de
81.7.221.135	PTR	mx1.ats.net
81.7.221.136	PTR	ftp.ats.net
81.7.221.142	A	fs.ats.net
81.7.221.172	A	mail.cjd.de
81.7.221.235	A	dns.kpfilms.com
81.7.221.236	A	smartcycle.com
81.7.221.236	A	*.smartcycle.com
81.7.221.236	A	smartcyclepackage.com
81.7.221.242	A	mail.kpfilms.com
81.7.221.246	PTR	smtpgw1.kpfilms.com
81.7.221.247	PTR	smtpgw2.kpfilms.com
81.7.222.140	A+PTR	mail.doka.de
81.7.222.167	A	wifw03-s10m2.wirtgen.de
81.7.222.171	PTR	mailrelay01.wirtgen-group.com
81.7.223.68	PTR	mail.mkk.de
81.7.223.175	PTR	domlinux1.vpv.de
81.7.223.176	PTR	domlinux2.vpv.de
81.7.223.250	PTR	mail1.mhplus.de