# Credit Card Validator

Credit card validator by Duplichecker helps you to check your credit card is valid or not. Just enter your CC Number and Hit Validate Credit Card Number Button and get CC status!

The credit card validator on DupliChecker lets you check the validity of multiple types of cards. You don’t have to put hard efforts or follow the technical procedure for the usage of this card validator service. All you have to do is follow the steps mentioned below for credit card number validation.

li>Enter the card number in the text box.

• The next step is to click the “Validate Card” button.
• As you will click on this button, the results will be displayed on your screen that will indicate the validity or invalidity of your entered card number.
• The credit card validator you’ll find over the web for checking the validity of credit cards might be limited to a certain type. But online cc validator you will find on our website allows you to conduct credit card number validation on multiple card types.

• Visa
• Master Card
• Maestro
• China Union

## Luhn Algorithm Check Credit Card

The Luhn algorithm is based on a formula that validates a variety of credit card numbers. The Luhn algorithm was settled in August 1960, and it’s widely used in the validation of credit cards. This algorithm is utilized by people for identifying mistyping or incorrect entries of card numbers in the banking and government sectors. If you have come across a card and want to check whether it’s valid or not, then you must run it through the Luhn algorithm to check. The credit card number that passes the Luhn algorithm check will indicate that it’s a valid card.

## How does the Luhn Algorithm Validate Credit Card Number?

The formula used by Luhn Algorithm for validating a credit card number is discussed in the steps below.

• First of all, remove the last digit from the credit card number you want to check.
• Secondly, reverse all the digits.
• Then multiply the odd digits in the number by two.
• Subtract the digits higher than 9 from 9.
• Take mode 10 on the sum of digits.
• If the answer is the same as the last digit of the card, then the card number is valid as per the Luhn algorithm.

Credit cards are issued by financial companies to their customers and allow cardholders to purchase goods and services from the businesses that accept cards for payments. A credit card has several metadata items, which include cardholder name, account number, expiration date, and issuing date.

For validating any card, you might have to reach the financial service provider and ask the manager to verify it. But before you reach out to them, the online card validator can help you verify whether the credit card number is valid or not. A credit card validator is a vital tool, as, with it, you can make sure the number imprinted on the card is valid before advancing towards the other verification procedure.

The credit card validator you’ll find on DupliChecker is the safest platform for checking the validity of any card over the web. Privacy is the concern for most of the users that keep them away from using online tools due to the fear of theft. However, our tool is providing you a safe and secure platform for checking the validity of credit cards. The credit card numbers you enter in this tool will not be shared with any third-party website. Plus, there’s no directory of the tool in which it stores the card numbers entered by the users. As soon as the validity process is over, your entered valid credit card number will be removed from its databases.

### How Many Digits Are In A Credit Card Number?

As earlier mentioned, there are different types of cards. The number of digits in these cards differ from one another. Let’s look into the length of different types of credit cards.

### List of credit card number formats

Credit Card Issuer Starts With ( IIN Range ) Length ( Number of digits )
American Express 34, 37 15
Diners Club - Carte Blanche 300, 301, 302, 303, 304, 305 14
Diners Club - International 36 14
Diners Club - USA & Canada 54 16
Discover 6011, 622126 to 622925, 644, 645, 646, 647, 648, 649, 65 16
JCB 3528 to 3589 16
Laser 6304, 6706, 6771, 6709 16-19
Maestro 5018, 5020, 5038, 5893, 6304, 6759, 6761, 6762, 6763 16-19
MasterCard 51, 52, 53, 54, 55 16-19
Visa 4 13-16
Visa Electron 4026, 417500, 4508, 4844, 4913, 4917 16