The Bank Identification Number (BIN) 521668 is issued by RABITABANK OJSC in AZERBAIJAN. This is a MASTERCARD CREDIT card with WORLD BLACK level.
BIN (Bank Identification Number), also known as IIN (Issuer Identification Number), refers to the first 6 digits of a payment card number. These digits identify the card-issuing institution, card type, and other attributes used for routing and fraud prevention.
By looking up BIN 521668, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (CREDIT), the card level (WORLD BLACK), the issuing bank (RABITABANK OJSC), and the country of issuance (AZERBAIJAN). This information is useful for payment processors, merchants, and fraud prevention systems.