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 mail sorting automation and digitalization of postal network and speed up mail delivery. China's postal code adopts a four-level six-digit coding structure. The postcode of Longgang District, Huludao is 125003, and the first two digits indicate provinces (municipalities and autonomous regions); The third digit indicates the postal area; The fourth digit indicates the county (city); The last two digits indicate the delivery office (office).

Postal code is usually composed of Arabic numerals, which represents a special code of the post office that delivers mail, 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 it is 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 specify the postal code when handing in letters and parcels.

Development history of postal code

Postal codes originated in Britain. In the early 1950s, Britain began to study postal codes, and it was tried out in Norwich postal area in 1959, which attracted the attention of many countries. West Germany officially announced the 4-digit postal code on 196 1, becoming the first country in the world to promote postal code nationwide. Then, the United States, Britain, France, Australia, Switzerland and other countries have successively implemented it throughout the country.

After 1965, with the wide application of machinery and equipment, the advantages of postal codes are more obvious, so Japan, Italy, Canada, the Netherlands and Sweden have also implemented postal codes one after another. By the beginning of 1988, more than 50 countries and regions in the world had implemented the postal code system.

Baidu Encyclopedia-Postal Code