Pre-validation Of International Credit Cards?

Feb 15, 2011

I am currently using regular expression for VISA card validation from nopCommerce to validate Visa cards just before sending them to the payment processor. The problem is that it returns a false-positive with international credit cards; it returns "invalid number" for a valid international VISA card number.

Is there any way I can validate international credit cards? I would like to do some pre-validation before sending it to the payment processor, and my guess is that nopCommerce only works with US-based credit cards.

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