Can I Check Someones Verizon's Voicemail?

You can check someones voicemail if they give you the code, anyone who checks someone else voicemail should question why this is necessary. If you have to check up on someone why are you with them? If this is a child of yours and you pay the bill, ask questions and if you don't like the answers, cut them off if you don't trust who they are in contact with. You never have to sneak, it changes who you are.