1. The debit card number of China Postal Savings Bank consists of 19 digits, the credit card number consists of 16 digits, and the passbook account number consists of 18 digits. Debit card numbers generally start with "622 188", "955 100" and "622 150".

2. Postal savings passbook is 18 digits, starting with "60", but postal savings can be remitted with card number 19 digits or account number 18 digits. The card numbers of China Postal Savings Bank are different according to different regions. The first letter must be 6, and then the following letters are divided by region.

3. The green card of postal savings started with 955 1 a long time ago, and now it starts with 622 1, which belongs to international cards; Silver zodiac cards all start with 622 1, and the card numbers on them are all 19 digits.

4. The card number of China Postal Bank starts with 622 188 or 955 100.

5. The postal green card currently issued is a UnionPay standard card, which can be exchanged with bank cards and networks issued by other financial institutions. In order to distinguish, UnionPay has assigned a postal card number. At present, 622188,622199,622150,622151bin is used, that is, the first six digits of the postal card number are fixed. Passbooks can only be exchanged in postal outlets, so their account numbers can be used by the postal service itself.