Credit Card Number Generator & Validator
- Validate a credit card number
- Fake credit card numbers for all major brands
- How to validate a credit card number
- List of credit card formats by issuer
Validate a credit card number
Credit Card Number:
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Fake credit card numbers for all major brands
These numbers were generated randomly. You can refresh the page to get new numbers.
- VISA:
- MasterCard:
- American Express (AMEX):
- Discover:
- JCB:
- Diners Club - North America:
- Diners Club - Carte Blanche:
- Diners Club - International:
- Maestro:
- LASER:
- Visa Electron:
- InstaPayment:
How to validate a Credit Card Number?
Most credit card number can be validated using the Luhn algorithm, which is more or a less a glorified Modulo 10 formula!
The Luhn Formula:
- Drop the last digit from the number. The last digit is what we want to check against
- Reverse the numbers
- Multiply the digits in odd positions (1, 3, 5, etc.) by 2 and subtract 9 to all any result higher than 9
- Add all the numbers together
- The check digit (the last number of the card) is the amount that you would need to add to get a multiple of 10 (Modulo 10)
Luhn Example:
| Step | Total | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Original Number: | 4 | 5 | 5 | 6 | 7 | 3 | 7 | 5 | 8 | 6 | 8 | 9 | 9 | 8 | 5 | 5 | |
| Drop the last digit: | 4 | 5 | 5 | 6 | 7 | 3 | 7 | 5 | 8 | 6 | 8 | 9 | 9 | 8 | 5 | ||
| Reverse the digits: | 5 | 8 | 9 | 9 | 8 | 6 | 8 | 5 | 7 | 3 | 7 | 6 | 5 | 5 | 4 | ||
| Multiple odd digits by 2: | 10 | 8 | 18 | 9 | 16 | 6 | 16 | 5 | 14 | 3 | 14 | 6 | 10 | 5 | 8 | ||
| Subtract 9 to numbers over 9: | 1 | 8 | 9 | 9 | 7 | 6 | 7 | 5 | 5 | 3 | 5 | 6 | 1 | 5 | 8 | ||
| Add all numbers: | 1 | 8 | 9 | 9 | 7 | 6 | 7 | 5 | 5 | 3 | 5 | 6 | 1 | 5 | 8 | 85 | |
| Mod 10: | 85 modulo 10 = 5 (last digit of card) | ||||||||||||||||
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 |
| InstaPayment | 637, 638, 639 | 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 |