Can anyone give me any ip numbers that run on port 23.

Tons. It is telnet.

The RFC is here , I think.
Get a portscanner here

Now hopefully you have enough knowledge to figure out how to scan port 23 for an IP range.
Portscaning is illegal and could possibly be considered terrorism. To find legit systems that you can poke around that probably have port 23 open, check here .

*sigh* Moved to newbies.

(600th post on a move...pathetic. :/)