GeoNames Forum

"There are four types of ZIP codes: Unique (assigned to a single high-volume address), P.O.-box-only (used only for P.O. boxes at a given facility, not for any other type of delivery), Military (used to route mail for the U.S. military) and Standard (all other ZIP codes)."
http://en.wikipedia.org/wiki/Zip_code#By_type.2Fuse

On the other hand...
"There are approximately 4,200 unique ZIP codes nationwide that belong to public utilities, banks,
large office buildings, direct mail fulfillment companies, universities, and other such
organizations that receive a large volume of mail.
http://www.uh.edu/mapp/03/030200.pdf

The zip code 94199 is an example of these unique ZIP codes (you can check it looking up the code in http://zip4.usps.com/zip4/citytown_zip.jsp ).

I'm interested in distinguishing these different types of codes, and in particular, I would like to know which these 4,200 unique zip codes are. Is there a way to distinguish these codes in the Geonames' US postal codes dump?

xavi

Xavi

We don't have this information.

Best

Marc