Are you looking to find your public IP address? If so, http://www.whatismypublicip.com/
You can grab someone's IP if you're using a peer-to-peer application, but what you're asking for is something more complex. You can't just simply get someone's IP
If someone is, or was in the last 5 seconds or so, their IP address will appear in "netstat -an" ( same for *nix and Windows ). So if you're running a webserver, you could check for connections to port 80.
I'd bet on it too, but it wasn't in the question.
Its not about that i want to find someones number which i dont have i think that through ip i will get it i need it urgent :(
\[\ln 45\cot 45\]
What sites do you have in mind? Certain sites, and applications sometimes leak a user's IP. For instance Skype is well know to leak a user's IP. (They still have not patched it, and it has been years.)
You could code a website that logs a person's IP. Send the link over /Kik/ and tell them to click on it.
ah the person is offline cant i find without their help?
I do not think so.