A postal code is a code that numbers part of an address for efficient mail sorting and delivery.
The original postal code was established on July 1, 1970.
The world's first postal code was introduced in Germany in 1941, Britain in 1959 and the United States in 1963.
As of August 1, 2015, the five-digit zone number assigned to the national basic zone has been used as a postal code.
Using the reorganized postal code, mail can be delivered quickly and accurately by optimizing the delivery route of postmen, thereby improving postal service, and sharing various information of all public institutions can strengthen the competitiveness of the country.