Credit Card Number Validator
Credit Card Number Validator is a free utility to help you check validity of a credit or debit card number. Credit Card Number Validator verifies credit or debit card numbers right on your PC without going on-line or transmitting sensitive information from your PC. ... It only verifies whether or not a credit or debit card checksum is valid; it does not validate the credit or debit card account. ... In order to verify a credit or debit card account, you will need software that can access credit and debit card networks, and, typically, submit authorization request on the card account.
http://www.soft911.com/CCV/validator.exe - 358Kb - Download - Screenshot

Credit Card Verifier
Credit Card Verifier allows you instantly check all major credit cards number for validity without submitting the card number online. Credit Card Verifier can validate any VISA, MasterCard, Diners Club, Carte Blanche, EnRoute, American Express (AMEX), Discover, or JCB credit card number. ... In order to verify a credit card account, you will need software that can access credit card networks, and, typically, submit authorization request on the card account. ... If you need to charge credit cards and validate credit card accounts, please look into a merchant provider such as Authorize.
http://www.credit-card-verifier.com/download/credit-card-verifier.exe - 292Kb - Download - Screenshot