primary resident card number how many digits
Card issuers refer to the leading six digits on the card as an issuer identification number (IIN), or sometimes referred to as bank identification number (BIN). On rare occasions they are referred to as bank card numbers. The remaining numbers on the card are referred to as the primary account number or PAN. IINs and PANS have a certain level of internal structure and share a common numbering scheme. Bank card numbers are allocated in accordance with ISO/IEC 7812.