Robtex

Up: 194.120.20.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 194.120.22.0/24
Down right: 194.120.23.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
194.120.22.1	PTR	r1-ka.promatis.de
194.120.22.2	PTR	router.promatis.de
194.120.22.3	PTR	pcc-apps1.promatis.de
194.120.22.4	PTR	pcc-infra1.promatis.de
194.120.22.5	PTR	demo1.promatis.de
194.120.22.7	PTR	ebs06srv.karlsbad2.promatis.de
194.120.22.10	PTR	g2-ka.promatis.de
194.120.22.20	PTR	server01.promatis.de
194.120.22.21	PTR	server02.promatis.de
194.120.22.22	PTR	server03.promatis.de
194.120.22.27	PTR	g1-ka.promatis.de
194.120.22.30	PTR	server30.promatis.de
194.120.23.2	A+PTR	forstw.forstware.de
194.120.23.2	A	forstware.de
194.120.23.2	A	mail.forstware.com
194.120.23.3	PTR	fire.forstware.de
194.120.23.5	PTR	thunder.forstware.de
194.120.23.6	A+PTR	w2008r2-64.forstware.de
194.120.23.7	PTR	storm.forstware.de
194.120.23.8	PTR	sun.forstware.de
194.120.23.9	A+PTR	mediacenter.forstware.de
194.120.23.10	PTR	wind.forstware.de
194.120.23.11	PTR	fwgw.forstware.de
194.120.23.12	PTR	fwgwpe.forstware.de
194.120.23.14	PTR	peak.forstware.de
194.120.23.15	PTR	cloud.forstware.de
194.120.23.18	PTR	rain.forstware.de
194.120.23.19	PTR	tornado.forstware.de
194.120.23.70	A+PTR	basis.forstware.de
194.120.23.81	PTR	fwsharepoint.forstware.de
194.120.23.202	PTR	w7-64.forstware.de
194.120.23.204	A+PTR	wxp-32.forstware.de