I found a black berry phone a long time ago and no one claimed it and since its in perfect condition I could make money off of it. Can any one help me?

yeah you could sell it for about 500$

In order to make any money on it you'll have to clear the ESN, which will involve calling the provider the phone works on. After that, go for it. Make sure you have a charger for it and all, getting a couple cheap accessories to go with it is a great way to increase your profits. Good luck.

ADDED: Seems like a good to find the owner, the honest thing to do, would be to call someone in the contacts list and ask who's phone that is.