Dinners Club and JCB

Dinners club card is royal card, though it isn't still widely accepted by the merchants. But, if there is someone holding this card, it probably means they are somebody...

14 digits of card number, started by 36, I think. It has the format of 4-6-4. I guess it was mainly for the royal dinner at the begining of the story of this company's history.

JCB is Japan card bureau, and it is also a bank now, offering mainly card services and other finacial services to Japanese.