The word ZIP stands for “Zone Improvement Plan” and the ZIP codes are a system that represents the postal codes. The ZIP codes are first used by the United States Postal Service (USPS) in 1963. The phrase ZIP is appropriately written in all caps and is use to suggest the area for the mail travels more efficiently and more quickly. The basic format of a full code consists of five decimal arithmetical digits.
The ZIP codes or the Postal codes were first initiated in December 1932 by the Union of Soviet Socialist Republics but that system lasts for only seven years and was dumped in 1939 สร้าง qr code. Germany was the next country to introduce the postal code system in 1941 and after Argentina introduces this system in 1958, followed by the U. K. in 1959, the U. S. in 1963 and the Switzerland in 1964.
The present and extended ZIP+4 codes were first introduced in the year 1980. This new format consists of former five digits of the code plus a hyphen plus four more digits. The new format determines a place more accurately than the former five digit codes. Robert Moon a postal inspector by profession is considered to be the father of the ZIP code because for the first time in 1944 he developed the idea of a postal code with only three digits describing as the Sectional Center Facility (SCF) number. Later on the three digits code is changed to five digits and now it becomes nine digits system.
In the beginning the United States Post Office (USPO) used a cartoon character by the name Mr. ZIP to promote use of the code. The code is frequently translated into a barcode which is known as a Postnet and is printed on the mail-item to formulate it easier for automatic equipments to arrange. The barcode can be printed by the sender of the mail or by the post office while processing the item for mail.
A ZIP code is well-known in different countries as a postal code, postcode or post code. There are basically four types of postal codes: First, the Unique code which are assigned to a solitary high-volume address. Second, the P.O.-box-only codes which are used only for P.O. boxes. Third, the Military Code that use only to route mail for the U.S. military and fourth, the Standard codes which are use in all other purposes.
In general the first digit of a ZIP code represents an assured group of U.S. states, the second and third digits together represents a area in that group and the fourth and fifth digits represents a group of delivery addresses inside that province.