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ZIP Codes are numbered with the first digit representing a certain group of U.S. states, the second and third digits together representing a region in that group (or perhaps a large city) and the fourth and fifth digits representing a group of delivery addresses within that region.

Also known as Zip code or area postal code, Pin code is the post office numbering code system used by the postal service of India, India Post. The PIN was first introduced in India on August 15, 1972. It is a 6 digits long code with each of the digits denoting a particular meaning.

ZIP Codes are 5-digit numbers developed by the United States Postal Service to represent individual post offices across the United States. "ZIP Code" is the name of the postal code system for the United States.

A United States postal code, for example, might be either five digits or five digits followed a hyphen (dash) and another four digits (12345-1234). If you are validating US postal codes, allow for both conditions. The following rule validates a field that can be five digits, five digits + dash + 4 digits, or blank.

The standard ZIP code notation used by the United States Postal service uses five digits to identify a delivery area. An example of a standard US ZIP code is 90210.

So what do the extra numbers mean? These last 4 digits represent specific delivery routes within delivery areas. This extra detail means an even more precise matching to a more granular level. It could represent a handful of houses on one side of a street, or even a single building that receives a high volume of mail.

Look Up a ZIP Code ™ By Address. Enter a corporate or residential street address, city, and state to see a specific ZIP Code™. Find by Address. By City and State. Enter city and state to see all the ZIP Codes™ for that city. Find by City & State. Cities by ZIP Code™ Enter a ZIP Code™ to see the cities it covers.

Zip codes are directed at geographic areas. Each post office has its own zip code. A city is an incorporated jurisdiction and usually, if not always is large enough to have its own, or more than one, zip code.

ZIP Codes are numbered with the first digit representing a certain group of U.S. states, the second and third digits together representing a region in that group (or perhaps a large city) and the fourth and fifth digits representing a group of delivery addresses within that region.

Also known as Zip code or area postal code, Pin code is the post office numbering code system used by the postal service of India, India Post. The PIN was first introduced in India on August 15, 1972. It is a 6 digits long code with each of the digits denoting a particular meaning.

ZIP Codes are 5-digit numbers developed by the United States Postal Service to represent individual post offices across the United States. "ZIP Code" is the name of the postal code system for the United States.

A United States postal code, for example, might be either five digits or five digits followed a hyphen (dash) and another four digits (12345-1234). If you are validating US postal codes, allow for both conditions. The following rule validates a field that can be five digits, five digits + dash + 4 digits, or blank.

The standard ZIP code notation used by the United States Postal service uses five digits to identify a delivery area. An example of a standard US ZIP code is 90210.

So what do the extra numbers mean? These last 4 digits represent specific delivery routes within delivery areas. This extra detail means an even more precise matching to a more granular level. It could represent a handful of houses on one side of a street, or even a single building that receives a high volume of mail.

Look Up a ZIP Code ™ By Address. Enter a corporate or residential street address, city, and state to see a specific ZIP Code™. Find by Address. By City and State. Enter city and state to see all the ZIP Codes™ for that city. Find by City & State. Cities by ZIP Code™ Enter a ZIP Code™ to see the cities it covers.

Zip codes are directed at geographic areas. Each post office has its own zip code. A city is an incorporated jurisdiction and usually, if not always is large enough to have its own, or more than one, zip code.