ICAO Code

The International Civil Aviation Organization (ICAO) defines several important codes for use in international aviation:

  • International Civil Aviation Organization airport codes or location indicators (published in ICAO Document 7910 - Location Indicators): 4-letter codes like LSZH for Zürich or HECA for Cairo
  • Airline codes or ICAO airline designators (published in ICAO Document 8585 - Designators for Aircraft Operating Agencies, Aeronautical Authorities and Services): 3-letter codes like BAW for British Airways or AFR for Air France
  • ICAO aircraft type designators (published in ICAO Document 8643 - Aircraft Type Designators): 4-letter codes like A320 for Airbus 320 or B772 for Boeing 777-200
  • ICAO 24bit aircraft addresses: allocation of 24 bit addresses to states to uniquely identify aircraft worldwide

Famous quotes containing the word code:

    “Wise Draco comes, deep in the midnight roll
    Of black artillery; he comes, though late;
    In code corroborating Calvin’s creed
    And cynic tyrannies of honest kings;
    He comes, nor parlies; and the Town, redeemed,
    Gives thanks devout; nor, being thankful, heeds
    The grimy slur on the Republic’s faith implied,
    Which holds that Man is naturally good,
    And—more—is Nature’s Roman, never to be
    scourged.”
    —Herman Melville (1819–1891)