The Bank Identification Number (BIN) 521657 is issued by GULF INTERNATIONAL BANK BSC in SAUDI ARABIA. This is a MASTERCARD CREDIT card with CORPORATE WORLD 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 521657, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (CREDIT), the card level (CORPORATE WORLD), the issuing bank (GULF INTERNATIONAL BANK BSC), and the country of issuance (SAUDI ARABIA). This information is useful for payment processors, merchants, and fraud prevention systems.