pin code for sim

Is it a phone subscription that you pay monthly payments. Or is it a prepaid card that is run out of funds. Because if it is one from a subscription I would go to your subscriber and if they can't find out they will be able to, or they will get you an new card. (you will get a new sim pin code either write it down in a notebook or email it to yourself.) Either way if you forgot the PIN code of the original and have no way of getting it you need to got your subscriber or purchase another one (and do not forget the pin code this time.)