Finding a PUK (Personal Unblocking Key) number is not tough
job. To find a PUK code all you have to do is call up on the
customer care number and ask them to help you with the issue. Before they provide you the PUK code, they will ask you several questions. You need to give them the appropriate information. Customer care of your
service provider
are the only source from which can give you the PUK code.
At the time when you enter a wrong pin number three times. The
phone asks you for a PUK number. The PUK code is generally eight digit number This PUK number is an unlocking code which helps you to unlock the phone and use it. If you enter a wrong PUK number 10 times than you simcard gets rejected. Then you will have to get a new simcard. This might happen that your phone might ask you for PUK2 after you enter your PUK number.