Excalibur wrote: That's a PIN number. ESN is for CDMA ro TDMA phones.
As Excalibur said that is the devices PIN number. Every BB has a unique PIN number with it. It is used for sending and recieving PIN messages and using BlackBerry Messenger. Very useful app if you have alot of friends that use BB's.
Message Edited by ernestdefoe on 04-17-200811:51:24 AM
the only way to tell if the pin is clear is to call customer service and ask them to check and see. It is very important when buying a blackberry second hand to make sure that the pin is clear and not registered to someone else's account, otherwise you will receive all of their emails and will not be able to set up your own personal email account.