The ICAO Code is a four-letter alphanumeric code assigned to each airport and aerodrome worldwide. It is established by the International Civil Aviation Organization to ensure a standardized identification system for aviation purposes. These codes are used in flight plans, air traffic control, and airline operations to enhance safety and efficiency in air travel. Each ICAO Code is unique and typically reflects the geographical location of the airport. For example, the code for Los Angeles International Airport is KLAX, where the 'K' indicates the United States. This coding system helps pilots and air traffic controllers communicate clearly and avoid confusion.