Robtex

Up: 193.30.64.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 193.30.64.0/23
Down right: 193.30.66.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
193.30.67.143	A	ns.braunschweig.de
193.30.67.144	PTR	144.ip.braunschweig.de
193.30.67.144	A	schillstrasse.de
193.30.67.144	A	braunschweig2010.com
193.30.67.145	PTR	mailout.braunschweig.de
193.30.67.147	PTR	147.ip.braunschweig.de