Geocode
From Wikipedia, the free encyclopedia
A geocode is a geographical code to identify a point or area at the surface of the earth.
The code systems can be described by:
- how the area is coded (number, letter, mixture of both, other)
- which part of the earth is covered (whole earth, land, water, a continent, a country)
- what kind of area or location is coded (country, county, airport, railstation, city, ...)
- whether an area or a point is coded
- time for which the code is valid
[edit] List of some code systems
Some of these code systems are free for use, others have different licences.
- Car License plates
- C-squares - compact encoding of geographic coordinate bounds (latitude-longitude)
- FIPS country codes (FIPS 10-4), area code, administrative, free
- FIPS place codes (FIPS 55) U.S. only, free
- FIPS county codes (FIPS 6-4) US only, free
- FIPS state codes (FIPS 5-2) US only, free
- Georef, a military / air naviation co-ordinate system for point and area identification
- IATA airport codes, area /point codes, airports
- ICAO airport codes, area /point codes, airports
- IANA country codes similar to ISO 3166-1 alpha-2
- IOC country codes, area, worldwide
- ISO 3166 country and subdivision codes
- ITU-R country codes
- ITU-T country calling codes
- ITU-T mobile calling codes
- Maidenhead Locator System
- MapDot Protocol: world locations coded into a zone sequence[1], free
- MARC country codes
- Marsden Squares
- NAC, area codes (area can be indefinitely small)
- NUTS area code, partially administrative, worldwide: countries, europe : country to community
- ONS code, UK only, administrative
- Postal codes, area, worldwide, country-codes by UPU, free
- Quarter Degree Grid Cells
- UN M.49 region codes, area code, continents, countries (like ISO 3166-1 numeric)
- SALB (Second Administrative Level Boundaries), by UN [2]
- UN/LOCODE, area, administrative, cities
- UTM
- WMO squares
[edit] See also
- Geocoding
- GIS
- Geographic coordinate system i.e longitude / latitude, point system
