Does anybody else find it strange that all the visible credit card numbers start with 5424? According to Wikipedia, Citibank has that issuer code (http://en.wi

Does anybody else find it strange that all the visible credit card numbers start with 5424? According to Wikipedia, Citibank has that issuer code (http://en.wikipedia.org/wiki/List_of_Bank_Identification_Numbers http://en.wikipedia.org/wiki/List_of_Bank_Identification_Num...). Why would only Citibank cards show up?