Robtex

Up: 212.9.32.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 212.9.32.0/21
Down right: 212.9.40.0/21

IP	Type	Hostname
212.9.32.0	PTR	h0-32-9-212.dsl.netz-quadrat.de
212.9.32.64	PTR	h64-32-9-212.dsl.netz-quadrat.de
212.9.43.1	PTR	gw-212-9-43-0.netzquadrat.net
212.9.43.4	PTR	murr.srv.sipgate.net
212.9.43.5	PTR	singold.srv.sipgate.net
212.9.43.253	A+PTR	spartacoredb01.sipgate.net
212.9.43.254	PTR	datacharger02.service.sipgate.net
212.9.44.3	PTR	r13-2.netzquadrat.net
212.9.44.6	A	luhe.srv.sipgate.net
212.9.44.15	A	oker.srv.sipgate.net
212.9.44.243	PTR	rtp07.service.sipgate.net
212.9.44.245	PTR	rtp09.service.sipgate.net
212.9.46.62	A	r1-1-x.net.sipgate.com
212.9.46.63	A	r1-1-x.net.sipgate.com
212.9.47.18	PTR	sfo10.srv.sipgate.com