Will Verizon let me connect a Stolen/Lost iPhone?

So I found an iPhone 4, and was wondering if I'm able to connect it to a Verizon Wireless Data Package Plan. I'm not sure if it has been reported stolen, but it's no longer connected so I'm guessing it has been. If I call or bring it in will they let me connect it?
Or can I get in trouble for bringing/calling?
The more info, the better please, thanks.

You might be able to set it up. If it has been reported stolen then when they type in the serial number it'll come up as stolen.