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: 64.90.137.2
Hostname: kermit.cros-lex.k12.mi.us
Hostname: pioneer.cros-lex.k12.mi.us
Hostname: ftp.cros-lex.k12.mi.us
Hostname: crxgp.sccresa.org
Hostname: cros-lex.cros-lex.k12.mi.us