A credit card number is a series of numbers printed on the front of the credit card, usually 16 digits.

The current 16-digit card number is an international standard. The first 6 digits are BIN, which are assigned by international card organizations. The first 4 is a VISA card, the 5 is Master, and 622126~622925 is a UnionPay standard card. Cards starting with 6 are China UnionPay single currency cards (or American discover), cards starting with 4 are international brand VISA credit cards (the world's number one credit card organization), cards starting with 5 are international brands MASTERCARD, and cards starting with 3 are Japanese JCB and American AMERICAN EXPRESS. The 7th to 15th digits are assigned to each row according to their own needs according to their regional affiliation, and the 16th digit is the check digit. Other non-16-digit card numbers are formulated and assigned by each bank.

So basically a 16-digit card can be roughly determined to be a credit card. Secondly, you can basically determine which bank it is from the first six digits of the credit card number. The following is a list of some credit card numbers:

436742 China Construction Bank VISA Dragon Debit Card

436745 China China Construction Bank VISA Dragon Card Debit Card

622280 China Construction Bank Alipay Dragon Card Debit Card

458123 Bank of Communications VISA Ordinary Card

521899 Bank of Communications MC Credit Card Ordinary Card

622260 Bank of Communications Pacific Card Debit Card

622760 Bank of China BOC Metropolis Card

409666 Bank of China BOC Series VISA Standard Card Ordinary Card/VISA University Approval Card

438088 Bank of China Air China Zhiyin Credit Card

622752 Bank of China Shanghai Branch Great Wall RMB Credit Card Ordinary Card

427020 Industrial and Commercial Bank of China VISA Student International Credit Card

427030 Industrial and Commercial Bank of China VISA International Credit Card Gold Card

518710 China Merchants Bank Doraemon Fan Credit Card

518718 China Merchants Bank Doraemon Fan Credit Card Collector’s Edition Card Face /MC Bertelsmann Gold Card/MC Car Owner Card

622588 China Merchants Bank QQ Card Debit Card

622575 China Merchants Bank HELLO KITTY Single Currency Card

622836 China Agriculture Bank RMB Credit Card Hong Kong Travel Card Credit Card Gold Card

622837 Agricultural Bank of China RMB Credit Card Hong Kong Travel Card Credit Card Pu Card

622848 Agricultural Bank of China Century Tongbao Debit Credit card

The above is the knowledge about credit card numbers. I hope it will be helpful to you!