Business::CreditCard

These subroutines tell you whether a credit card number is self-consistent --
whether the last digit of the number is a valid checksum for the preceding
digits. 

Jon Orwant 

The Perl Journal and MIT Media Lab 

orwant@tpj.com 

Current maintainer is Ivan Kohler <ivan-business-creditcard@420.am>.
Please don't bother Jon with emails about this module.