Which airport has the ICAO code KPHX?

The ICAO code KPHX corresponds to Phoenix Sky Harbor International Airport, which is the primary airport serving Phoenix, Arizona. ICAO codes are unique four-letter alphanumeric codes assigned to each airport by the International Civil Aviation Organization. The first letter often indicates the region of the world, with 'K' designating the contiguous United States. Following the 'K' is 'PHX,' which specifically identifies Phoenix Sky Harbor among all other airports.

Each airport's code is an essential part of aviation operations, as it aids in communication and identification across various systems and services within the aviation industry. In this case, knowing that KPHX refers specifically to Phoenix helps in understanding airport operations, flight planning, air traffic control, and more, making it a valuable piece of information for anyone studying aviation.