Determine credit card type by number?

Question

Can credit card type be determined solely from the credit card number?

Is this recommended or should we always ask client for the type of credit card they\'re using?

Answer 1

I am pretty certain that at least for MasterCard, Visa, Discover, and American Express that that is accurate. I have never worked with any of the others.

See the very bottom of this page: http://www.merchantplus.com/resources/pages/credit-card-logos-and-test-numbers/

Also this might be useful to you" http://www.beachnet.com/~hstiles/cardtype.html

This is pretty interesting to: http://en.wikipedia.org/wiki/Bank_card_number