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: 192.195.155.200
Hostname: alumni.sandiego.edu
Hostname: gme.sandiego.edu
Hostname: sandiego.edu
Hostname: web3.sandiego.edu
Hostname: www.sandiego.edu