Mastercard BIN list Mastercard Credit Cards — Santander - IIN 544731

Credit card numbers that start with the Issuer Identification Number (IIN) 544731 are Mastercard credit cards issued by Santander in Brazil. Santander issues cards under a total of 37 IIN numbers including this one, so some card numbers issued by Santander may start with IIN numbers from one of these other ranges. You can view a list of all 37 of Santander's IIN numbers here. For more information, call Santander at (800) 307-7309.


Santander
credit card chip
5447 31XX XXXX XXXX
5447 Valid Thru 08/2020
John Q. Cardholder
Card Scheme Mastercard
Bank Name Santander
Card Type CREDIT
IIN 544731
Card Number 5447 31XX XXXX XXXX
Bank Phone (800) 307-7309
Bank Country Brazil


Anatomy of a Santander Mastercard Credit Card Number

While credit card number may seem like a random string of digits, they actually contain a large amount of valuable data about the card that can be used for validation and verification purposes.

Digit 1 — The MII

The first digit of the card is known as the MII digit, and indicates the credit card's scheme. In this case, the MII of 5 indicates that this is a Mastercard card.

Digits 1-6 — The IIN / BIN

The first six digits of the card number, inclusive of the MII, are called the IIN (Issuer Identification Number) or BIN (Bank Identification Number). This sequence uniquely identifies the bank that issued the card. In this case, the IIN of 544731 indicates that this card was issued by Santander in Brazil.

Digits 7-15 — The Account Number

Digits 7-15 of the credit card number contain the Primary Account Number, or PAN, issued by the bank to uniquely identify the account holder. These 8 digits are the most important part of the credit card number.

Digit 16 — The Check Digit

The last digit of the card number (the 16th digit in most cases) is the check digit, which is calculated by applying a mathematical formula called the Luhn algorithm to the preceding portions of the account number. While not actually part of the account number itself, the check digit is essential to allow easy validation of card numbers and detection of typos, missed digits, etc.


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Source: http://www.creditcardvalidator.org/mastercard/santander/544731