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www.alluszipcodes.com contains information about addresses and zipcodes in United States. Find out which zipcodes are applicable to your address.


Zipcodes play an important role in helping routing of mails. United States Postal Service uses Zipcodes as a system of postal codes. Zip stands for Zone Improvement Plan. The basic format contains five numeric digits while there is also an extended ZIP + 4 format which includes the five digits from the basic format and four more digits after a hyphen.

- AllUSZipcodes Team