Hi: You can actually use the whois program to do this sort of thing. It's a good idea to pipe its output through more (or less) as there can often be quite a bit of it. You can either enter IP addresses or domains, and you can also enter partial IP addresses (i.e. the first 3 numbers). Geoff. -- Geoff Shang <gshang10 at scu.edu.au> ICQ number 43634701