CardIt! is a very simple program which checks the validity of a credit card number.
To use it just hit CMD-E to open up the validation dialog. Then enter the credit card number you wish to verify. When you're done just hit return or click the OK button.
The program will then give you an alert telling you whether the number is valid or not. If it isn't it will show the number you typed, and give a brief error message explaining why it is invalid.
The other (and the main reason for this program) use is to actually BUILD credit card numbers using the same algorithm. Just hit CMD-G (Generate Numbers). Another dialog will pop up asking you to input some information, like a starting seed number and the range you wish to try. The wider the range, the longer it takes -- but it finds LOTS of CC numbers. Here go something that would help know which bank of card you have.
4019 XXXX XXXX XXXX Bank of America Gold (This card looks like a CV but
without a CV after the expiration date)
4678 xxxx xxxx xxxx Home Federal
4726 XXXX XXXX XXXX Wells Fargo CV
4036 xxxx xxxx xxxx
4561 XXXX XXXX XXXX
4443 xxxx xxxx xxxx
4833 XXXX XXXX XXXX
4424 xxxx xxxx xxxx Security Pacific National Bank
4428 XXXX XXXX XXXX Choice Visa [Citibank(Maryland)]???
4070 xxxx xxxx xxxx
4735 XXXX XXXX XXXX
4673 xxxx xxxx xxxx
4044 XXXX XXXX XXXX
4050 xxxx xxxx xxxx
4226 XXXX XXXX XXXX Chase Manhattan Bank
4605 xxxx xxxx xxxx
4923 XXXX XXXX XXXX
4820 xxxx xxxx xxxx
4048 XXXX XXXX XXXX CV
4121 xxxx xxxx xxxx Signet Bank CV
4368 XXXX XXXX XXXX
Mastercard
----------
5419 xxxx xxxx xxxx Bank of Hoven
5410 XXXX XXXX XXXX Wells Fargo
5412 xxxx xxxx xxxx Wells Fargo
5273 XXXX XXXX XXXX Bank of America Gold
5273 xxxx xxxx xxxx Bank of America
5254 XXXX XXXX XXXX Bank of America
5286 xxxx xxxx xxxx Home Federal
5031 XXXX XXXX XXXX Maryland Bank of North America
5326 xxxx xxxx xxxx
5424 xxxx xxxx xxxx Citibank
5250 XXXX XXXX XXXX
5417 xxxx xxxx xxxx
5215 XXXX XXXX XXXX
5204 xxxx xxxx xxxx
5465 XXXX XXXX XXXX Chase Manhattan Bank
5411 xxxx xxxx xxxx
5421 XXXX XXXX XXXX
5329 xxxx xxxx xxxx Maryland Bank of North 5308
5217 XXXX XXXX XXXX
5415 xxxx xxxx xxxx
5291 XXXX XXXX XXXX Signet Bank
American Express
----------------
3728 xxxx xxxx xxxx GOLD
3713 XXXX XXXX XXXX Regular
3732 xxxx xxxx xxxx Regular
3737 XXXX XXXX XXXX
3782 xxxx xxxx xxxx Small Corporate Card
3731 XXXX XXXX XXXX
3724 xxxx xxxx xxxx
3742 XXXX XXXX XXXX
3727 xxxx xxxx xxxx
3787 XXXX XXXX XXXX Small Corporate Card
3726 xxxx xxxx xxxx
3766 XXXX XXXX XXXX
3734 xxxx xxxx xxxx
3749 XXXX XXXX XXXX
3763 xxxx xxxx xxxx
3710 XXXX XXXX XXXX
3718 xxxx xxxx xxxx
3720 XXXX XXXX XXXX
3739 xxxx xxxx xxxx
Possible uses:
1. Most online services (GEnie, AOL, CI$, etc) only check to see if the credit card number you gave is valid. If so, you get a free account for a month. Wopee.
2. Most party lines also do the same.
3. Use your imagination because I'm too tired to help you out.
Further updates will (hopefully) include:
1. More credit card's accepted (at present it only checks AMEX, VISA and MasterCard).
If there any bug problem contact me at my BBS Uplink (303)343-4053