Robtex

Up: 193.101.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 193.101.8.0/22
Down right: 193.101.12.0/22

IP	Type	Hostname
193.101.11.0	PTR	0.bertelsmann.11.101.193.in-addr.arpa
193.101.12.2	PTR	orion.component-studio.de
193.101.12.23	PTR	sirius.component-studio.de
193.101.12.36	PTR	argon.cai.de
193.101.15.80	A	gp405.heeg.de
193.101.15.80	A	goofy.heeg.de