Geocodes

three-letter air-travel designation for airports, railway stations and cities

four-letter code designating many airports around the world

geocode standard for referencing the subdivisions of countries for statistical purposes

alphabetic or numeric geographical codes that represent countries and dependent areas

geographical database

Russian Classification on Objects of Administrative Division (), or OKATO (), also called All-Russian classification on units of administrative and territorial distribution in English, is one of several Russian national registers. OKATO's purpose is organization of information about structure of the administrative divisions of the federal subjects of Russia.

thumb|Geotag information in a JPEG photo, shown by the software [[gThumb]] thumb|Geotag information stamped onto a JPEG photo by the software GPStamper thumb|Geotagger "Solmeta N2" for the Nikon D5000 DSLR

thumb|Worldwide density of GeoNames entries in 2006

number sequence for the identification of politically independent municipalities

UN/LOCODE, the United Nations Code for Trade and Transport Locations, is a geographic coding scheme developed and maintained by United Nations Economic Commission for Europe (UNECE). UN/LOCODE assigns codes to locations used in trade and transport with functions such as seaports, rail and road terminals, airports, Postal Exchange Office and border crossing points. The first issue in 1981 contained codes for 8,000 locations. The version from 2011 contained codes for about 82,000 locations.

address geocoding, a process of finding associated geographic coordinates

database of geographical objects

collaborative compilation of information about the world's time zones

US geographic naming government agency

What3words (stylized as what3words) is a proprietary geocode system designed to identify any location on the surface of Earth with a resolution of approximately . It is owned by What3words Limited, based in London, England. The system encodes geographic coordinates into three permanently fixed dictionary words. For example, the front door of 10 Downing Street in London is identified by ///slurs.this.shark.

the transverse Mercator projection is the transverse aspect of the standard (or Normal) Mercator projection

system of geographic grid references used in Great Britain

global coordinate reference system

the world in "numbered" squares

Microformat to create metadata for location properties

UBIGEO () is the coding system for geographical locations (Spanish: Código Ubicacíon Geográfica) in Peru used by the National Institute of Statistics and Informatics (Spanish: Instituto Nacional de Estadística e Informática, INEI) to code the first-level administrative subdivision: regions (Spanish: regiones, singular: región), the second-level administrative subdivision: provinces (Spanish: provincias, singular: provincia) and the third-level administrative subdivision: districts (Spanish: distritos, singular: distrito). There are 1874 different ubigeos in Peru.

encoding of geographic coordinates into a short string of characters and digits, named plus code

locations on maps using Cartesian coordinates

Russian Classification of Territories of Municipal Formations (), or OKTMO (), is one of several Russian national registers. OKTMO organizes information about the structure of the municipal divisions of Russia.

geographic name web service and database for British Columbia

code used in the United Kingdom for tabulating statistical data

a scientific work about a geographical scheme

A geocode is a code that represents a geographic entity (location or object). It is a unique identifier of the entity, to distinguish it from others of its geocode system. In general the geocode is a human-readable and short identifier.

national committee which authorizes Canadian geographic names

incomplete and former project to map the world uniformly

resolving geographical coordinates to a street address

type of division code in the PRC by the Ministry of Civil Affairs

series of codes to represent a wide range of geographical areas of the UK

URI scheme for geographic locations

Wikimedia list article

standard for area codes used by the United Nations

unique digital code for each administrative-territorial entity of Ukraine, used from January 2021

A WOEID (Where On Earth IDentifier) is a unique 32-bit reference identifier, originally defined by GeoPlanet and now assigned by Yahoo!, that identifies any feature on Earth. In 2009, Yahoo! released GeoPlanet's WOEID data to the public, with the last release on 1 June 2012, after which Yahoo! decided to cease making the data downloadable until they "determine a better way to surface the data as a part of the service".