INTERNATIONAL INFORMATION CENTRE FOR TERMINOLOGY
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ISO 639/RAs – Registration Authorities

The following organizations have been designated Registration Authorities for the different ISO 639 codes:

  • Infoterm (ISO 639-1/RA) for the alpha-2 language code elements contained in ISO 639-1:2002
  • Library of Congress (LoC) (ISO 639-2/RA) for the alpha-3 language code elements contained in ISO 639-2:1998
  • SIL International (ISO 639-3/RA) for the alpha-3 language code elements comprised in ISO 639-3:2007
  • Library of Congress (ISO 639-5/RA) for the alpha-3 code elements comprised in ISO 639-5:2008
  • Geolang has been designated the Registration Authority (ISO 639-6/RA) for the alpha-4 code elements comprised in ISO 639-6:2009.
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Last update: 2014-09-15

 
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