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What card starts with bank card 52? Is it different from the one starting with 62?
1. According to ISO (International Organization for Standardization) regulations, among the BIN numbers starting with 4, 5 and 6, the BIN number starting with 4 was bought out by VISA, the one starting with 5 was mostly purchased by MasterCard, and the one starting with 3 by American Express.

2. In 2002, China UnionPay applied to the International Organization for Standardization for an international standard 6-prefix bank identification code, which was widely used at home and abroad.

3.ISO stipulates that the BIN number of "9" prefix is the BIN number of domestic cards, and the distribution method is determined by each country. Therefore, if you hold a debit card issued by a domestic bank, it will start with "6" and "9", while international credit cards will start with "3", "4" and "5".

Supplement: Brief introduction of bank card number

1. Bank card number refers to the number code on the hard card issued by each bank, and there are uniform provisions for business number segments among commercial banks.

2. The first six digits of the card number represent the identification code of the issuing bank, also called the BIN number, and different BIN numbers represent different bank card organizations and card grades.