UN/LOCODE
The UN Code of Trade and Transport Places is often referred to as "UN/LOCODE". Although it is managed and maintained by the United Nations Economic Commission for Europe, it is the result of extensive cooperation in joint trade facilitation efforts carried out within the framework of the United Nations.
United Nations Local Codes (UN/LOCODE) was initiated by the United Nations Economic Commission for Europe Working Group on Trade Facilitation and is based on the coding structure developed by the United Nations Economic Commission for Latin America and the Caribbean (ECLAC) and the list of locations provided by the United Nations Economic Commission for Asia and the Caribbean (ECLAC), and developed by UNCTAD in collaboration with transport organizations such as the International Air Transport Association (IATA) and the International Standards Aviation Council (ICS), At the same time, governments and business institutions are actively involved. The code was first published in 1981 and provided codes for the names of about 8,000 locations around the world.
Currently, the United Nations/LOCODE covers 103,034 locations in 249 countries and territories. It is widely used by most major shipping companies, freight forwarders, and manufacturing industries worldwide. The code is also applied by governments and trade-related activities, such as the European Union for statistics, the Universal Postal Union for certain postal services, etc.
Coding rules
UN/LOCODE is a combination of country code (2 letters) + place code (3 letters), the first 2 letters are ISO 3166 2-letter codes, indicating the country or region where the air port is located, and the last 3 letters correspond to the English spelling of the air port name, for example:
USBAL: Port of Baltimore, USA (US=US, BAL=Baltimore) CNSHA: Port of Shanghai, China (CN=China, SHA=Shanghai)
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