Category: Zip Codes

    Understanding 9 Digit Zip Codes

    Understanding 9 digit zip codes means understanding the final four digits. This, in turn, means understanding the concept of ZIP (zone improvement plan) codes themselves.

    Read More

    Why Is There 9 Digit Zip Codes

    Before looking at why is there 9 digit zip codes, it is important to understand the history of these codes. The name was registered by USPS as a servicemark, but this has since expired.

    Read More

    Learn More About US Postal ZIP Code Lists

    Zip codes are numerical codes that designate a specific geographical area of the country. You can learn more about US postal zip code lists and how to look them up, but it may be interesting to understand the meaning of the numbers first.

    Read More

    ZIP Codes 101: All About US Postal ZIP Codes

    There were a number of specific events that made the United States Postal Service (USPS) need to develop a zip code system. When you learn all about US postal zip codes, you get to know quite a bit of our country’s history, in fact.

    Read More

    How To Find The Plus 4 In A US Postal ZIP Code

    If you are looking to send your mail through the United States Postal Service and you want it there as fast as possible, then take the time to look up the ZIP Code +4 digits online. It is the best way to learn how to find the +4 in a US Postal Zip Code and the fastest way to get your mail where you want it to be without delay.

    Read More