I contacted T-mobile and they said it would work as long as I unlock the phone. How would I unlock the Iphone 4? EDIT: So I just called verizon and they said that the Iphone 4 is already unlocked so I could use my friends Iphone 4 on t mobile! Thanks for the help man!

Hey guys, My friend is letting me have his old verizon Iphone 4 but I currently have T-mobile. Is it possible for me to use a verizon iphone 4 wiht t-mobile ? Sorry if its a stupid question.