It depends, if you have a cell phone other then the blackberry. If you have a sprint phone with the data plan you can put your sim card into it and it will work. It wont work with anything except sprint unless it is unlocked. If you don't have a sprint phone just take the sim card out of the blackberry and take the phone to sprint. Once there you can sign a contract and use the blackberry.It will be $69.00 a month to use the blackberry. Your better off just getting rid of the blackberry you found. In the long run it will be better just to get a new phone.