olemus
maksekaardi identifikaator, mille koostises on
väljaandja tunnusnumber ja primaar-kontonumber
= the payment card identifier containing the issuer identification number and primary account number

näiteid
https://duckduckgo.com/?q=payment+card+number&t=h_&iax=images&ia=images

ülevaateid
https://en.wikipedia.org/wiki/Payment_card_number

https://www.wikizero.com/en/Payment_card_number

standard
https://www.iso.org/obp/ui/#iso:std:iso-iec:7812:-1:ed-5:v1:en