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The United States has 22 Air Route Traffic Control Centers (ARTCC). [1] They are operated by and are part of the Federal Aviation Administration of the U.S. Department of Transportation . An ARTCC controls aircraft flying in a specified region of airspace, known as a flight information region (FIR), typically during the en route portion of flight.
Albuquerque ARTCC United States: KZAK FIR Oakland Oceanic ARTCC Oceanic United States: KZAU FIR Chicago ARTCC United States: KZBW FIR Boston ARTCC United States: KZDC FIR Washington ARTCC United States: KZDV FIR Denver ARTCC United States: KZFW FIR Ft Worth ARTCC United States: KZHU FIR Houston ARTCC United States: KZID FIR Indianapolis ARTCC
A center's communication frequencies (typically in the very high frequency aviation bands, using amplitude modulation (AM) 118 MHz to 137 MHz, for overland control) are published in aeronautical charts and manuals, and are also announced to a pilot by the previous controller during a hand-off. Most VHF radio assignments also have a UHF (225 to ...
External ARTCC subset. (Block of discrete codes except that xx00 is used as a non-discrete code after all discrete codes are assigned.) [3] 1400 Canada: VFR flight above 12,500' ASL when no other code has been assigned. [7] Japan: VFR flight above 10,000' MSL when no other code has been assigned. [citation needed] US: External ARTCC subset.
A map showing the borders of the United States' flight information regions as well as that of Canada and other neighboring nations. Old Federal Aviation Administration airspace map of ARTCCs in the United States overlaid with what states they cover Flight Information Regions (FIR) of France FIR and jurisdictional airspace in Japan FIR and jurisdictional airspace in South Korea
The allocation of radio frequencies is provided according to Article 5 of the ITU Radio Regulations (edition 2012). [3]In order to improve harmonisation in spectrum utilisation, the majority of service-allocations stipulated in this document were incorporated in national Tables of Frequency Allocations and Utilisations which is within the responsibility of the appropriate national administration.
Anchorage ARTCC (ZAN) is the northern, eastern, and westernmost center and is one of three designated oceanic centers. The Anchorage ARTCC has control responsibility for more than 2,500,000 square nautical miles (8,600,000 km 2 ) of airspace divided between three areas of specialization and 15 sectors.
Washington Center is the second busiest (after Atlanta) ARTCC in the United States. Between January 1, 2017 and December 31, 2017, Washington Center handled 2,554,410 aircraft operations. [ 1 ] The Washington ARTCC covers 165,000 square miles (430,000 km 2 ) of airspace that includes airports in Maryland , Pennsylvania , West Virginia ...