Robtex

Up: 194.120.16.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 194.120.20.0/23
Down right: 194.120.22.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
194.120.21.2	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.9	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.12	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.22	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.24	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.28	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.30	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.32	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.34	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.40	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.41	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.42	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.43	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.50	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.62	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.63	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.68	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.74	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.77	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.78	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.80	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.83	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.86	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.87	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.88	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.91	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.94	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.98	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.100	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.103	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.108	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.114	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.115	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.117	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.118	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.119	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.120	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.121	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.122	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.123	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.126	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.129	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.132	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.135	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.139	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.144	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.149	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.156	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.157	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.170	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.171	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.174	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.187	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.194	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.197	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.198	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.199	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.201	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.203	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.205	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.207	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.214	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.218	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.219	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.223	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.226	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.230	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.236	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.237	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.239	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.242	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.248	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.252	PTR	unused-static-pa.de.kpn-eurorings.net
194.120.21.254	PTR	unused-static-pa.de.kpn-eurorings.net
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