Diners Club International
In 2004, Diners Club announced an agreement with Mastercard. Diners Club cards issued in the United States and Canada then featured a MasterCard logo and 16-digit account number on the front and could be used wherever Mastercards were accepted. Cards from other countries continued to bear a 14-digit account number on the front, with the Mastercard logo on the back. However, since the takeover of Diners Club International by Discover Financial Services, these cards have had the Discover logo on the back.