The Bank Identification Number (BIN) 634004 is issued by TESCO CLUBCARD in UNITED KINGDOM. This is a MAESTRO DEBIT card with Unknown 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 634004, you can determine: the card network (MAESTRO), whether it's a credit, debit, or prepaid card (DEBIT), the card level (Unknown), the issuing bank (TESCO CLUBCARD), and the country of issuance (UNITED KINGDOM). This information is useful for payment processors, merchants, and fraud prevention systems.