Postal bank cards are divided into debit cards and credit cards. The card number of the debit card is 19 digits, and the card number of the credit card is 16 digits. Debit cards usually start with 622188, 955100 or 622150. Therefore, to distinguish the type of card in your hand, you can distinguish it by the number of digits in the card number and the starting digits.

The Postal Bank passbook number is an 18-digit number, starting with the number 60. Both passbooks and bank cards can be used to handle banking services, but due to the expansion of the use of ATM machines, bank cards can be used to handle business more conveniently.