Geocoding Vocabulary
Metadata
- IRI
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http://www.opengis.net/def/geocodes - Definition
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A vocabulary to define Geocoding systems within OGC
- Publisher
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https://defs.opengis.net/org/ogc
- Creator
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https://defs.opengis.net/org/geosparql-swg
- Date Created
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2026-01-01
- Date Modified
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2026-07-31
- Copyright Notice
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(c) 2026 Open Geospatial Consortium
Concept Hierarchy
Concept Definitions
Administrative Code
| IRI |
http://www.opengis.net/ont/geocode/AdministrativeCode
|
| Preferred Label | Administrative Code |
| Definition | Administrative Code |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
| Has Narrower | Postal Code |
Airport Code
| IRI |
http://www.opengis.net/ont/geocode/AirportCode
|
| Preferred Label | Airport Code |
| Definition | A code used to identify the geolocation of an airport |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
| Has Narrower | ICAO Airport Code |
Amateur radio
| IRI |
http://www.opengis.net/ont/geocode/AmateurRadio
|
| Preferred Label | Amateur radio |
| Definition | Geocodes used by operators in the amateur radio community |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
| Has Narrower | QRA Locator |
C-Squares
| IRI |
http://www.opengis.net/ont/geocode/C-Squares
|
| Preferred Label | C-Squares |
| Definition | C-Squares is a system of spatially unique, location-based identifiers for areas on earth represented as cells from the Discrete Global Grid. |
| Alternative Label | Concise Spatial QUery And REpresentation System |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
| Source | http://www.marine.csiro.au/csquares/ |
CLLI Code
| IRI |
http://www.opengis.net/ont/geocode/CLLICode
|
| Preferred Label | CLLI Code |
| Definition | A location identifier code used within the North American telecommunications industry to specify the location and function to telecommunications equipment |
| Alternative Label | Common Language Location Identifier Code |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
Country Code
| IRI |
http://www.opengis.net/ont/geocode/CountryCode
|
| Preferred Label | Country Code |
| Definition | A country code is a code to identify countries and dependent areas |
| Is Defined By | This vocabulary |
| Has Broader | Administrative Code |
| Has Narrower | ITU-R Country Code |
EirCode
| IRI |
http://www.opengis.net/ont/geocode/EirCode
|
| Preferred Label | EirCode |
| Definition | Postal Code of Ireland |
| Is Defined By | This vocabulary |
| Example | A65 F4E2 |
| Has Broader | Postal Code |
FIFA Country Code
| IRI |
http://www.opengis.net/ont/geocode/FIFACountryCode
|
| Preferred Label | FIFA Country Code |
| Definition | The FIFA country code is a three-letter code to identify its member and non-member countries |
| Is Defined By | This vocabulary |
| Example | ENG for England |
| Has Broader | Country Code |
| See Also | https://www.rsssf.org/miscellaneous/fifa-codes.html |
GSS Code
| IRI |
http://www.opengis.net/ont/geocode/GSSCode
|
| Preferred Label | GSS Code |
| Definition | A GSS Code is a nine-character geocode maintained by the United Kingdom's Office for National Statistics to represent geographical areas of the UK |
| Is Defined By | This vocabulary |
| Example | E09000011 for Royal Borough for Greenwich |
| Has Broader | Administrative Code |
GeoCode
| IRI |
http://www.opengis.net/ont/geocode/GeoCode
|
| Preferred Label | GeoCode |
| Definition | A code that represents a geographic entity |
| Is Defined By | This vocabulary |
| Has Narrower | What3Words |
| Is Top Concept In Scheme | This vocabulary |
GeoHash Code
| IRI |
http://www.opengis.net/ont/geocode/GeoHashCode
|
| Preferred Label | GeoHash Code |
| Definition | A Geocode following the GeoHash encoding |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
| Has Narrower | GeoHash-36 |
| Source | http://geohash.org |
GeoHash-36
| IRI |
http://www.opengis.net/ont/geocode/GeoHash-36
|
| Preferred Label | GeoHash-36 |
| Definition | GeoHash-36 is an open source compression algorithm for world coordinate data |
| Is Defined By | This vocabulary |
| Example | 9LVB4BH89g-m for Statue of Liberty in New York, USA |
| Has Broader | GeoHash Code |
| Source | https://web.archive.org/web/20121227195936/http://www.openpostcode.org/other-codes/geohash-36 |
GeoRef
| IRI |
http://www.opengis.net/ont/geocode/GeoRef
|
| Preferred Label | GeoRef |
| Definition | World Geographic Reference System |
| Alternative Label | World Geographic Reference System |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
| Source | https://earth-info.nga.mil/GandG/coordsys/grids/georef.pdf |
IANA Country Code
| IRI |
http://www.opengis.net/ont/geocode/IANACountryCode
|
| Preferred Label | IANA Country Code |
| Definition | The country codes which comprise the top level domain generally used by or reserved for a country |
| Is Defined By | This vocabulary |
| Example | NL for the Netherlands |
| Has Broader | Country Code |
IATA Airport Code
| IRI |
http://www.opengis.net/ont/geocode/IATAAirportCode
|
| Preferred Label | IATA Airport Code |
| Definition | A three-letter code issued by the International Air Transport Association (IATA) to identify airports and metropolitan areas on Earth. |
| Is Defined By | This vocabulary |
| Example | FRA for Frankfurt International Airport, Germany |
| Has Broader | Airport Code |
ICAO Airport Code
| IRI |
http://www.opengis.net/ont/geocode/ICAOAirportCode
|
| Preferred Label | ICAO Airport Code |
| Definition | A four-letter code used to identify aerodromes on Earth. |
| Is Defined By | This vocabulary |
| Example | EDDF for Frankfurt International Airport, Germany |
| Has Broader | Airport Code |
IOC Country Code
| IRI |
http://www.opengis.net/ont/geocode/IOCCountryCode
|
| Preferred Label | IOC Country Code |
| Definition | International Olympic Committee country codes identifying countries associated with the Olympic Games |
| Is Defined By | This vocabulary |
| Example | AUS for Australia |
| Has Broader | Country Code |
ITU-R Country Code
| IRI |
http://www.opengis.net/ont/geocode/ITU-RCountryCode
|
| Preferred Label | ITU-R Country Code |
| Definition | ITU-R Country Code |
| Is Defined By | This vocabulary |
| Has Broader | Telephone Code |
ITU-T Country Calling Code
| IRI |
http://www.opengis.net/ont/geocode/ITU-TCountryCallingCode
|
| Preferred Label | ITU-T Country Calling Code |
| Definition | Country calling codes are telephone number prefixes for reaching telephone subscribers in foreign countries or territories |
| Is Defined By | This vocabulary |
| Has Broader | Telephone Code |
ITU-T Mobile Calling Code
| IRI |
http://www.opengis.net/ont/geocode/ITU-TMobileCallingCode
|
| Preferred Label | ITU-T Mobile Calling Code |
| Definition | ITU-T Mobile Calling Code |
| Is Defined By | This vocabulary |
| Has Broader | Telephone Code |
MGRS
| IRI |
http://www.opengis.net/ont/geocode/MGRS
|
| Preferred Label | MGRS |
| Definition | The geocoordinate standard derived from the UTM grid used by NATO militaries to located points on Earth. |
| Alternative Label | Military Grid Reference System |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
Maidenhead Locator System
| IRI |
http://www.opengis.net/ont/geocode/MaidenheadLocatorSystem
|
| Preferred Label | Maidenhead Locator System |
| Definition | Geocode System used by amateur radio operators |
| Alternative Label | QTH Locator |
| Is Defined By | This vocabulary |
| Has Broader | Amateur radio |
Mapcode
| IRI |
http://www.opengis.net/ont/geocode/Mapcode
|
| Preferred Label | Mapcode |
| Definition | A mapcode is an open source geocode system consisting of two groups of letters and digits to identify places on earth |
| Is Defined By | This vocabulary |
| Example | France 4J.Q2 for Eiffel Tower |
| Has Broader | GeoCode |
| Source | https://www.mapcode.com |
Marsden Square
| IRI |
http://www.opengis.net/ont/geocode/MarsdenSquare
|
| Preferred Label | Marsden Square |
| Definition | A system that divides a word map into a latitude-longitude grid |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
Mesh Block Code
| IRI |
http://www.opengis.net/ont/geocode/MeshBlockCode
|
| Preferred Label | Mesh Block Code |
| Definition | A Mesh Block Code is an 11-digit code indicating a Mesh Block, the smallest geographic areas defined by the Australian Bureau of Statistics for the Australian census. It comprises a State and Territory identifier (1 digit), and a Mesh Block identifier (10 digits). |
| Is Defined By | This vocabulary |
| Example | 60032860000 for Mesh Block 0032860000 in Tasmania |
| Has Broader | Administrative Code |
Natural Address Code
| IRI |
http://www.opengis.net/ont/geocode/NaturalAddressCode
|
| Preferred Label | Natural Address Code |
| Definition | A geocode to encode an address |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
Natural Area Code
| IRI |
http://www.opengis.net/ont/geocode/NaturalAreaCode
|
| Preferred Label | Natural Area Code |
| Definition | A proprietary geocode system for identifying areas anywhere on or in orbit around Earth. |
| Alternative Label | Universal Address |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
| Source | http://www.nacgeo.com |
Open Location Code
| IRI |
http://www.opengis.net/ont/geocode/OpenLocationCode
|
| Preferred Label | Open Location Code |
| Definition | The Open Location Code is a geocode based on a system of regular grids. It may be used to identify any location on Earth. |
| Alternative Label | Plus Code |
| Is Defined By | This vocabulary |
| Example | 6PH57VP3+PR for Merlion Park, Singapore |
| Has Broader | GeoCode |
| Source | https://maps.google.com/pluscodes/ |
Place Code
| IRI |
http://www.opengis.net/ont/geocode/PlaceCode
|
| Preferred Label | Place Code |
| Definition | A Geocode mostly used by emergency response teams |
| Alternative Label | P-Code |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
Postal Code
| IRI |
http://www.opengis.net/ont/geocode/PostalCode
|
| Preferred Label | Postal Code |
| Definition | A postal code is a code which is included in a postal address for the purpose of sorting mail |
| Is Defined By | This vocabulary |
| Has Broader | Administrative Code |
| Has Narrower | ZIP Code |
Postal Index Number
| IRI |
http://www.opengis.net/ont/geocode/PostalndexNumber
|
| Preferred Label | Postal Index Number |
| Definition | A six-digit code used by India Post |
| Is Defined By | This vocabulary |
| Example | 110040 for Bankner, North West Delhi |
| Has Broader | Postal Code |
QRA Locator
| IRI |
http://www.opengis.net/ont/geocode/QRALocator
|
| Preferred Label | QRA Locator |
| Definition | Obsolete geocoding system used by amateur radio operators in Europe |
| Alternative Label | QTH Locator |
| Is Defined By | This vocabulary |
| Has Broader | Amateur radio |
Telephone Code
| IRI |
http://www.opengis.net/ont/geocode/TelephoneCode
|
| Preferred Label | Telephone Code |
| Definition | A code used to identify telephones by location. |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
| Has Narrower | ITU-T Mobile Calling Code |
UK PostCode
| IRI |
http://www.opengis.net/ont/geocode/UKPostCode
|
| Preferred Label | UK PostCode |
| Definition | A postcode used to identify areas in the United Kingdom and its overseas territories |
| Is Defined By | This vocabulary |
| Example | ASCN 1ZZ for Ascension Island |
| Has Broader | Postal Code |
UN/LOCODE
| IRI |
http://www.opengis.net/ont/geocode/UN-LOCODE
|
| Preferred Label | UN/LOCODE |
| Definition | A geographic encoding scheme developed by the United Nations Economic Commission for Europe |
| Alternative Label | United Nations Code for Trade and Transport Locations |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
| Source | https://unece.org/trade/uncefact/unlocode |
WMO Square
| IRI |
http://www.opengis.net/ont/geocode/WMOSquare
|
| Preferred Label | WMO Square |
| Definition | World Meteorological Organisation Square |
| Is Defined By | This vocabulary |
| Has Broader | GeoCode |
| Source | https://www.nodc.noaa.gov/OC5/WOD05/data05geo.html |
What3Words
| IRI |
http://www.opengis.net/ont/geocode/What3Words
|
| Preferred Label | What3Words |
| Definition | What3Words is a proprietary Geocoding System by What3Words Limited that can be used to identify any location on the surface of Earth within 3 metres. |
| Is Defined By | This vocabulary |
| Example | ///slurs.this.shark for Downing Street 10 in London |
| Has Broader | GeoCode |
ZIP Code
| IRI |
http://www.opengis.net/ont/geocode/ZIPCode
|
| Preferred Label | ZIP Code |
| Definition | Postal Code of the USA |
| Is Defined By | This vocabulary |
| Example | 20521-9000 for Washington DC |
| Has Broader | Postal Code |
Namespaces
- :
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http://www.opengis.net/ont/geocode/ - cs
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http://www.opengis.net/def/geocodes - rdf
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http://www.w3.org/1999/02/22-rdf-syntax-ns# - rdfs
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http://www.w3.org/2000/01/rdf-schema# - schema
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https://schema.org/ - skos
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http://www.w3.org/2004/02/skos/core#