How is the postal code compiled, what was used in the past, and what is used now

First of all, it is inevitable for the development of informatization. Mailbox code can be built into a higher credibility and accuracy of the postal address database, the use of this database, can be more convenient in all aspects of the postal network to achieve computer networking auxiliary operations, and the implementation of computer management for postal users, especially with the newspaper subscription, mail order business, business letters, advertising information processing and network production of the start, postal code is an important supporting measures. Second, with the growth of business volume, the "bottleneck" of data entry"It is becoming more and more prominent, and the mailbox code can speed up the processing time of mail, help to standardize and standardize the postal delivery environment in urban and rural areas, and improve the delivery rate of mail.

China's postal code adopts a four-level six-digit coding structure. The first two digits indicate provinces (municipalities, autonomous regions); The first three digits indicate the postal area; The first four digits indicate the county (city); The last two digits indicate the delivery office.

Postal code is a special code for postal communication to realize the sorting of mail machines, and it is a necessary tool to realize postal modernization, and the ultimate goal is to improve the speed and accuracy of your letters in the delivery process, so it is important to indicate the postal code when sending letters and parcels. To automate mail sorting and digitize the postal network to speed up mail delivery.

China's postal code adopts a four-level six-digit coding structure. The first two digits indicate provinces (municipalities, autonomous regions); The third digit indicates the postal area; The fourth digit indicates the county (city); The last two digits indicate the delivery office.

Postal code is a way for countries or regions to divide the whole country into codes in order to achieve the automation of mail sorting and the digitization of the postal network, and speed up the delivery of mail. The postal code system has become one of the standards for measuring the level of communication technology and postal services in a country. The postal code was first invented in Ukraine and introduced in December 1932, but it was abandoned in the third year and later adopted again in Germany.

Most countries or regions use postal codes in their postal systems, with a few exceptions. Ireland, Panama, Jamaica and Hong Kong do not use postal codes, while New Zealand only uses postal codes for sending large volumes of mail. Some ** must enter a zip code, if the place of residence is not used at all, you can fill in 00000.

Many countries or regions use numeric postal codes, but the United Kingdom and Canada also use a mix of romanized and numeric codes. Countries or regions that use numeric numbers also use different digits, such as the United States uses 5 or 9 digits, Mexico uses 5 digits, Australia uses 4 digits, and India uses 6 digits. The most complex encoding format is the United Kingdom.