How to Find Out My Zip Code Extra 4 Digits

Did you know that your zip code contains four extra digits? This is a relatively recent addition that was implemented two decades after the original five-digit system was first introduced. This system helps mail delivery and sorting more efficiently by designating specific locations. You can find your ZIP code on your utility bill or on the back of a piece of mail. To learn more, read on. Here are some useful tips for finding out your zip code.



Before you start looking for the ZIP code for your address, make sure to look at the other three digits. This will help you find out which letter you're missing. If you have a long address, check the other digits in the ZIP code. The four unused ten-digits are reserved for identifying delivery areas. However, if you have an oddly shaped address, it could be indicative of a problem with the postal service.

The ZIP code with the extra four digits is based on the delivery routes. The five-digit code changes every three to four years, but the full nine-digit ZIP code changes frequently. Your +4 identifies your delivery sector. By identifying these areas, you can more efficiently sort mail. So, how do you find out what the ZIP+4 code is? To find out more, read the article below.

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