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| UN/LOCODE | |
|---|---|
| Name | UN/LOCODE |
| Type | United Nations code list |
| Founded | 1981 |
| Founder | United Nations Economic Commission for Europe |
| Parent organization | United Nations Economic and Social Council |
| Website | UN/LOCODE (not linked) |
UN/LOCODE UN/LOCODE is a geographic coding scheme that assigns five‑character location codes to ports, inland freight terminals, airports, postal exchange offices, and other transport and trade nodes. It is maintained by the United Nations Economic Commission for Europe, published in cooperation with regional bodies and national administrations, and used across international frameworks such as International Maritime Organization, World Customs Organization, International Air Transport Association, International Civil Aviation Organization, and International Organization for Standardization applications.
UN/LOCODE provides standardized identifiers for thousands of locations worldwide, enabling interoperability among systems operated by entities like Maersk Line, DHL, FedEx, MSC Mediterranean Shipping Company, and DB Schenker. It complements coding schemes such as ISO 3166-1 alpha-2, IATA airport codes, and ICAO airport codes to support trade facilitation involving organizations including World Trade Organization, United Nations Conference on Trade and Development, International Chamber of Shipping, and port authorities at Port of Rotterdam, Port of Singapore, and Port of Los Angeles. Users include customs administrations exemplified by United States Customs and Border Protection, freight forwarders such as Kuehne + Nagel, and logistics platforms like CargoSmart.
The origin of the code list traces to work by the United Nations Economic Commission for Europe in the late 20th century to harmonize location references used in transport documents and trade data. Development intersected with initiatives led by bodies such as UNECE Transport Division, standards groups like ISO Technical Committee 34, and national agencies including HM Revenue and Customs and Deutsche Bahn. Over time updates have reflected trends documented by institutions like World Bank, Organisation for Economic Co-operation and Development, and major maritime incidents recorded by International Maritime Organization, prompting refinements adopted by actors such as European Commission directorates and regional organizations like Association of Southeast Asian Nations.
Each entry in the list uses a two‑letter country identifier drawn from ISO 3166-1 alpha-2 followed by a three‑character location element, creating a five‑character tag comparable to entries in IATA airport codes and compatible with shipping manifests required by International Maritime Dangerous Goods Code procedures. Records include metadata fields referencing place names, status indicators aligned with guidance from United Nations Conference on Trade and Development reports, and coordinates used in geospatial platforms such as Esri ArcGIS and Google Maps Platform. The format supports cross‑referencing with identifiers maintained by European Commission – DG MOVE, Bureau International des Containers, and national statistical offices like the U.S. Census Bureau.
Maintenance is undertaken by UNECE with contributions from national maintenance agencies including examples like UK Hydrographic Office, Agence Nationale des Ports (Morocco), and Port Authority of New York and New Jersey. Periodic releases follow procedures akin to those used by International Organization for Standardization committees, with versioning and change logs that inform stakeholders such as International Air Transport Association and International Maritime Organization. Dissemination channels used by implementers include trade facilitation portals run by World Customs Organization members, industry publications from Lloyd's List, and integration into enterprise systems deployed by SAP SE and Oracle Corporation.
UN/LOCODE is used in electronic data interchange standards like UN/EDIFACT and ISO 20022, manifests for carriers including CMA CGM and Hapag-Lloyd, and in customs declarations submitted to agencies similar to Canada Border Services Agency and Australian Border Force. It supports supply chain visibility platforms employed by retailers such as Walmart and IKEA and is integrated into maritime analytics services from IHS Markit and Clarksons Research. Humanitarian logistics operations coordinated by United Nations Office for the Coordination of Humanitarian Affairs and International Organization for Migration also rely on consistent location coding for relief staging areas and points of entry.
Critiques note that maintenance lags and inconsistent national submissions can lead to discrepancies highlighted in assessments by World Bank trade facilitation studies and audits by European Court of Auditors. The five‑character format has been described as insufficient by some technology vendors such as IBM and Microsoft when mapping to complex geospatial identifiers used by OpenStreetMap and national cadastres. Additional limitations arise in multiservice hubs exemplified by John F. Kennedy International Airport and Port of Hamburg, where granularity for terminals, berths, or rail sidings is sometimes inadequate compared with proprietary identifiers used by operators like DP World.
UN/LOCODE interoperates with ISO 3166-1 alpha-2, IATA airport codes, ICAO location indicators, and messaging standards including UN/EDIFACT, ISO 20022, and WCO Data Model. Integration patterns follow practices from initiatives such as Single Window implementations advocated by World Customs Organization and trade digitization efforts supported by UN Global Compact and Global Alliance for Trade Facilitation. Interoperability projects often involve technology providers like Accenture, Capgemini, and SAP SE to map UN/LOCODE entries to enterprise resource planning datasets and geospatial services from Esri.
Category:Trade and transport standards