The Bank Identification Number (BIN) 550436 is issued by HANG SENG BANK LIMITED in MACAO. This is a MASTERCARD CREDIT card with MIXED PRODUCT 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 550436, you can determine: the card network (MASTERCARD), whether it's a credit, debit, or prepaid card (CREDIT), the card level (MIXED PRODUCT), the issuing bank (HANG SENG BANK LIMITED), and the country of issuance (MACAO). This information is useful for payment processors, merchants, and fraud prevention systems.