The Bank Identification Number (BIN) 557507 is issued by ALIOR BANK SPOLKA AKCYJNA in POLAND. This is a MASTERCARD DEBIT card with PREPAID RELOADABLE 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 557507, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (DEBIT), the card level (PREPAID RELOADABLE), the issuing bank (ALIOR BANK SPOLKA AKCYJNA), and the country of issuance (POLAND). This information is useful for payment processors, merchants, and fraud prevention systems.