Use Zip Code Notice For Free

A 5-Digit ZIP code represents a USPS delivery area. A 9-Digit ZIP code, also known as a ZIP+4 code or an extended ZIP code, includes the same information as the 5-Digit ZIP code, plus additional information about a specific delivery route within the delivery area.

Structure of Pin Code/Postal Code The first digit represents the region in India. The second digit is the sub-region, while the third digit is the sorting district. The last three digits represent the particular post office within the district.

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.

The most complete ZIP Code is a nine-digit number consisting of five digits, a hyphen, and four digits, which the USPS describes by its trademark ZIP+4. The correct format for a numeric ZIP+4 code is five digits, a hyphen, and four digits.

If you want to improve the chances that the letter will make it to its destination quickly, you should use the five-digit ZIP code plus the four additional numbers that are specific to the area. To format, write the ZIP code with a hyphen afterward and then the four additional numbers will immediately follow that.

If prompted for your ZIP code, just enter the three digits of your postal code plus two zeros. So for example, if your postal code is A2B 3C4, the 5-digit number you should enter is 23400.

Write the mailing address of the recipient, starting with the street and city on the third line, and state and zip code on the fourth line. If the recipient is in another country, indicate the name of the country in the fourth line.