Robtex

Up: 81.92.4.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 81.92.4.0/25
Down right: 81.92.4.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.92.4.2	A+PTR	r2.wup.tal.de
81.92.4.2	A	cisco-w0.tal.de
81.92.4.9	PTR	r1.fra.tal.de
81.92.4.13	PTR	r1.fra.tal.de
81.92.4.26	PTR	r1.fra.tal.de
81.92.4.34	PTR	r1.fra.tal.de
81.92.4.42	PTR	r1.fra.tal.de
81.92.4.50	PTR	r1.fra.tal.de
81.92.4.73	PTR	r1.fra.tal.de
81.92.4.78	A	cisco-w3.tal.de
81.92.4.104	A	r4.wup.tal.de
81.92.4.121	A+PTR	r1.fra.tal.de
81.92.4.121	A	cisco-f4.tal.de
81.92.4.121	A	r1.fra3.tal.de
81.92.4.122	A+PTR	cisco-f2.tal.de
81.92.4.122	A	r1.fra.tal.de
81.92.4.138	A+PTR	ns3-eu.123ns.eu
81.92.4.138	A	ns3-eu.123ns.de
81.92.4.138	A	ns3.klute-thiemann.de
81.92.4.141	A	ns7.im-netzwerk.de
81.92.4.141	A	ns2.bimetal.net
81.92.4.143	PTR	webserver.jowol.de
81.92.4.143	A	preis-gesucht.de
81.92.4.143	A	form-ing.com
81.92.4.163	A	xn--plakatsule-w5a.de
81.92.4.163	A	xn--plschsofa-r9a.de
81.92.4.163	A	xn--nationalitt-u8a.de
81.92.4.167	A	server1.wfp2.com
81.92.4.169	A	mail.xynxweb.de
81.92.4.169	A	*.xynxweb.de
81.92.4.172	A	mailing.wfp2.com
81.92.4.173	PTR	r4.wup.tal.de