The first two digits indicate provinces (municipalities and autonomous regions); The first three digits indicate the postal area; The first four digits represent counties (cities); The last two digits indicate the delivery office (office).

Postal Code (English: postal code, also known as postal code) is a coding method that a country or region divides the whole country in order to realize the automation of mail sorting and the digitization of postal network and speed up the mail delivery. Postal code system has become one of the standards to measure a country's communication technology and postal service level.

Postal code is usually composed of Arabic numerals, which represents a special code of the post office where mail is delivered, and it is also the code of communication between residents and units within the delivery range of this office. Postal code is a special code for postal communication to realize mail machine sorting and a necessary tool to realize postal modernization.

the ultimate goal is to improve the speed and accuracy of your letters in the process of delivery, so be sure to write down 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 the mail delivery.

At present, more than 14 countries in the world have successively implemented the postal code system, which is regarded as one of the standards to measure a country's communication technology and postal service level. Postal code rules in different countries are not uniform.

Extended information:

First, the origin of postal code

(English: postcode) is a measure taken by the post and telecommunications departments to realize postal modernization, which was born in the United States.

in June p>1963, the postal code was born in the United States to meet the rapidly increasing demand for mail delivery at that time, and the United States became the first countries with postal codes in the world.

II. Usage

Postal code is to realize the scheme of letter sorting automation, because the computer can't recognize Chinese, but it can recognize numbers. Code each area, and you can use computer to sort quickly. Of course, the finer you write, the better.

III. Postal Code Rules of Other Countries

1. American Code Rules

Postal code is a registered trademark of the United States Postal Service.

Postal codes are numbered with the first number representing states in the United States, the second and third numbers together representing a region (perhaps a big city), and the fourth and fifth numbers representing more specific regions, such as small towns or regions in that city.

2. French coding rules

The French postal code began in 1972, with ***6 digits, the first two digits represent provinces, and the last three digits represent cities, regions or post offices respectively.

3. Japanese coding rules

A new postal coding system developed by Japan Post was put into use on February 2, 1998. The purpose of developing the system is to meet the needs of the expanding postal mechanization operation, improve the operation efficiency, and ensure to provide users with stable, cheap and high-quality services. Its main features are as follows:

The number of digits in the postal code is 7, and the character "—"is used between the first three digits and the last four digits;

text structure: all numbers are used;

the connection between the old and new postal code systems: three or five digits in the old code are used as the first digits of the new code; The particularity of the new code: each small part of the address (such as cho and oaza) is designated as a number, which is connected after the existing postal code. Large enterprises and other business centers can have special codes.

4. Russian code

The Russian postal code consists of 6 digits, for example:

1 2 5 7 5, in which the first 3 digits represent provinces or big cities and the last 3 digits represent delivery post offices.

Baidu Encyclopedia-Postal Code