What's the postal code of 450000?

The city represented by postal code 450000 is Zhengzhou, that is, in order to facilitate sorting when writing letters, there will be a postal code in the upper left corner of the envelope. The location marked in red in the picture is the location where the postal code of the recipient is written.

Postal code explanation:

Postal code is a special code composed of Arabic numerals, which represents the post office where mail is delivered, and it is also the communication code between residents and units within the delivery range of this bureau. Postal code is a special code for postal communication to realize mail sorting, and it is a necessary tool to realize postal modernization. The ultimate goal is to improve the speed and accuracy of your letters in the delivery process, so be sure to indicate the postal code when handing in letters and parcels. In order to realize the automation of mail sorting and the digitalization of postal network and speed up mail delivery.

At present, more than 140 countries in the world have successively implemented the postal coding system, which is regarded as one of the standards to measure the communication technology and postal service level of a country. Postal coding rules in different countries are not uniform.