http://www.geekzilla.co.uk/Innovation Team's dumping grounden-usTue, 10 Jun 2003 04:00:00 GMTTue, 10 Jun 2003 09:41:01 GMTGeekZilla.co.ukeditor@GeekZilla.co.ukwebmaster@GeekZilla.co.uk http://www.geekzilla.co.uk/view3F00940A-5D51-4736-8DB7-18CDC11C9788.htm Credit Card Number Ranges Here is the basic set of credit card number ranges: ||'''Issuer'''|| '''Identifier'''|| '''Card Number Length''' || ||Diner's Club/Carte Blanche|| 300xxx-305xxx, 36xxxx, 38xxxx|| 14 || ||American Express ||34xxxx, 37xxxx ||15 || ||VISA|| 4xxxxx ||13, 16 || ||MasterCard ||51xxxx-55xxxx ||16 || ||Discover ||6011xx ||16 || More information {Anatomy of Credit Card Numbers}http://www.merriampark.com/anatomycc.htm by Michael Gilleland {Credit Card Number Validator}http://www.tneoh.zoneit.com/javascript/cardobject.html 14/1/2008 http://www.geekzilla.co.uk/view3F00940A-5D51-4736-8DB7-18CDC11C9788.htm