We perform some checks on your number and explain what each part of it means. JCB: 15 or 16 (Japan Credit Bureau: Japan)Ĭhina UnionPay: 16 (People’s Republic of China: China) What checks will we perform on your number?

Maestro Cards: 12 to 19 (multi-national debit card) Following is the list of some issuing authorities along with their card length: Issuing Authority with Card Length (Description)ĭiners Club Card: 14 digits (including International and Blanche) Now, the number of digits in a credit card number varies with the issuing authority.

That’s the logic behind credit/debit card numbers. This last digit so obtained is called as Checksum digit.

Now, what must be added to the sum obtained so that it is divisible by 10? In this case, it is 7 Step 5: Now, Sum up all the single digits and all the digits left in the card number. This will give us all the result in a single digit number. Step 4: Sum up the digits if the multiplication results in a 2 digit number. Starting from the first i.e., 1 and taking every second number, we will get the following numbers: 1 0 9 9 8 9 1 2 Step 3: Now beginning from the left, start with the first number, take every second number and multiply it by 2 as shown here: Here is the logic behind the condition that must be satisfied: Now, this is not exactly the bank account number of a customer but the account number assigned to your credit account.Ĭheck Digit: And lastly, one last digit known as the “check digit” which is generated in such a way as to satisfy a certain condition.

The series followed by VISA cards starts from 4xx while that of Mastercard starts from 51–55 as the prefix.Īccount Number associated with Credit Card: Taking away the first 6 identifier digits, the following 6 to 9 digits constitutes unique bank account number. Issuer Identification Number (IIN): The first six digits of the credit card number are known as the Issuer Identification Number short for IIN and this is to identify the institution that issued the card. Telecommunications And Other Industries,.Travels And Entertainment American Express Or Food Club,.This is known as “Major Industry Identifier” short for MII.įollowing is the list of Major Identity Identifier MII: Major Identity Identifier (MII): The first digit of the card represents the category of industry which issued your credit card. Let’s dive into these 16 digits that we just see a string of random numbers and is often wondering what numbers on credit card mean.

Parasite in city free hentai game