Amex BIN list Amex Credit Cards — American Express - IIN 376528

Credit card numbers that start with the Issuer Identification Number (IIN) 376528 are Amex credit cards issued by American Express in Brazil. American Express issues cards under a total of 194 IIN numbers including this one, so some card numbers issued by American Express may start with IIN numbers from one of these other ranges. You can view a list of all 194 of American Express' IIN numbers here. For more information, call American Express at (342) 102-6266.

American Express
credit card chip
3765 Valid Thru 08/2021
John Q. Cardholder
Card Scheme Amex
Bank Name American Express
Card Type CREDIT
IIN 376528
IIN Range End 376529
Card Number 3765 28XX XXXX XXXX
Bank Phone (342) 102-6266
Bank Country Brazil

Anatomy of an American Express Amex 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 3 indicates that this is a Amex 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 376528 indicates that this card was issued by American Express 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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