The Bank Identification Number (BIN) 523691 is issued by WORLD FIRST ASIA LIMITED in VIET NAM. This is a MASTERCARD DEBIT card with WORLD LEGEND 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 523691, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (DEBIT), the card level (WORLD LEGEND), the issuing bank (WORLD FIRST ASIA LIMITED), and the country of issuance (VIET NAM). This information is useful for payment processors, merchants, and fraud prevention systems.