There are only two institutions approved by Income Tax department for issue of PAN cards. NSDL and UTITSL. You might have applied with any one of them. You can track your PAN card status and can know your PAN number from the web sites of UTITSL and NSDL through whom you have applied.
Please note that you have to collect your PAN card at the address which you have already given to them at the time of your PAN application with them. If you want to change the address, you have to contact them and give new address and at the same time you have to submit address proof to that new address.
When you have applied for a PAN card, you might have given PAN application counter foil. Based on that you can try the below websites to trace our your PAN card status.
A). If the counter foil number contains 15 digits acknowledgment number, then it is a NSDL PAN application for that below website. First try with your 15 digit acknowledgment No. Otherwise you can try by giving your name as given in the PAN application along with your date of birth. If you have applied with NSDL this application will tell you your PAN status.
https://tin.tin.nsdl.com/tan/servlet/PanStatusTrack
B). If the application counter foil contains 9 digit Application number and 9 digit coupon number, then it is a UTITSL PAN application. For that below website (Try with App.No. or with Cou.No.. Do not give both the numbers at a time.)
http://myutitsl.co.in/intra/web/pantrack.jsp