I found a verizon iphone 4 in a ok condition and currently in airplane mode?

I was wondering how can i get to the owner? Because currently the Verizon doesn't have any service & i can't get to the contacts because there's a password on it. I tried various different common passwords but no luck. I don't want to get into trouble myself so i was thinking of giving back to the owner but there's no way i can find him/her. What should i do? Nobody called on it, its been a whole day! If i bring it down to a shop to repair for the password, will the contacts still be in?

I'd just take it to the Verizon store and unlock it and help contact the owner

Try connecting it to itunes

Call Verizon and tell them. You don't wanna get in trouble.