Is it possible to use a wireless 'phone card' on a found phone?

I am a bum and looking for aluminum cans %26amp; plastic bottles to recycle I have come across several mobile phones.


Some of them expensive looking flip open phones


They must be cheap if they can be thrown away because the battery is dead or something.





Anyway I was thinking of trying to get a charger and extra batteries for one of these phones and then get a mobile phone card like those sold at 7/eleven.





Is this a valid idea or is there a flaw that I have not thought of?





If it is possible do I have to get a phone card that matches the phone?


For example I have two phones that look to be made by samsung one is a 'mobile' and one is 'sprint' could I use a 7/eleven card on either or would I need to use a mobile or sprint card respectively or is there another option?

Is it possible to use a wireless 'phone card' on a found phone?
It depends on which service the phone is providing if it is a contract phone you have to either go to the dealer to add more minutes..however when you do add those minutes you may have to provide the name or security code that was set when the phone was bought. or you can turn it into a pay as you go phone but you will still need to go to a dealer and have them transfered in your own account which will give you your own number and then you can add minutes by a mobil phone card from that provider
Reply:If they are indeed "found" phones they would have to be prepaid phones in order to use those cards. If they are "thrown-out" they are probably broke and deactivated. If they are stolen and the original owner has deactivated them and you attempt to use them you won't be able to.

White Teeth