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Find the remainder of this number when it is divided by 10, in this case 8. This is also known as the sum modulo 10. A simple way to combine the two steps is to sum the digits without a tens column at all, but discard all carries. Subtract the sum modulo 10 from 10. Continuing with the example, 10 − 8 = 2. The check digit is therefore 2.
The last digit is usually 0, except for postal codes for PO Box number ranges, in which case it is 1. Country code for Finland: "FI". In Åland, the postal code is prefixed with "AX", not "FI". Some postal codes for rural settlements may end with 5, and there are some unique postal codes for large companies and institutions, e.g. 00014 ...
The FIPS state alpha code for each U.S. states and the District of Columbia are identical to the postal abbreviations by the United States Postal Service. From September 3, 1987, the same was true of the alpha code for each of the outlying areas, with the exception of U.S. Minor Outlying Islands (UM) as the USPS routes mail for these islands ...
A ZIP Code (an acronym for Zone Improvement Plan [1]) is a system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that the mail travels more efficiently and quickly [ 2 ] ( zipping along ) when senders use the code in the postal address .
In a database, storing the ZIP+4 code in a 10 character field (with the hyphen) allows easy output in the address block, and storing the check digit in a 3-digit field (instead of calculating it) allows automatic checking of the validity of the ZIP+4 and delivery point fields in case one had been changed independently.
The postal codes do not indicate precisely the communes but the location of the post office in charge for the distribution, and many rural communes share the same postal code number as the commune where the post office is located. There are also 5-digit INSEE codes for foreign countries and territories, beginning with 99. [3]
Download as PDF; Printable version; ... Lists of postal codes (3 C, 5 P) A. ... Postal codes in the United States (1 C, 2 P)
Geocode cells of Geohash, with 8 (blue) and 9 (yellow) digits, a typical hierarchical grid, comparing with latitude-longitude (12 or more digits). A museum is a typical location to be pointed by a geocode, its gate need ~20 meters of precision.