Reverse DNS Lookup
This tool will provide you the hostname (ie www.yahoo.com) of the IP address that you enter below.
Results:
Lookup on IPv4 Address: 82.135.9.51
Hostname: www.walchenseecamp.de
Hostname: wp.linksystem-muenchen-gmbh.de
Hostname: intrarestore.kjr-ml.de
Hostname: ispconfig.kjr-ml.de
Hostname: intra25test.kjr-ml.de