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Air Route Traffic Control Center (ARTCC) Frequencies

This section contains all 2152 frequencies currently used by the Air Route Traffic Control Center (ARTCC) system. Simply click on 1 of the 20 Centers and a map as well as VHF and UHF frequecies will be displayed.

The facilities which provide air traffic control service to aircraft (both civil and military) operating on IFR flight planes in the controlled airspace are the Air Route Traffic Control Centers (ARTCC). They are also the central authority for issuing IFR clearances, and they provide nationwide monitoring of each IFR flight. ARTCCs also provide "Flight Following" services to civil and military aircraft on VFR flights. Each ARTCC (center), due to its size, is divided into sectors.

In each list of Center frequencies you will see freqs listed as Low Altitude, High Altitude, and Ultra High Altitude. Low Altitude is defined as up to 23,000' (FL230 - Flight Level 230). High Altitude is defined as from 23,000' to 33,000' (FL330 - Flight Level 330). Ultra High Altitude is defined as above 33,000' (above FL330).

Another note I need to mention regarding the source of frequencies used to compile the ARTCC frequencies. Of late there has been a lot of hype in an email group regarding posting bogus information inorder to intrap copyright violators. NO BOGUS INFO as been included within this data! However if you use my data please give credit where credit is due. The source of this data is the raw.txt file which resides on the FAA's FTP server.

This website may be linked to for non-commercial purposes without permission. Links to individual maps is not permitted. Commercial use of the maps or the information they contain (including commercial website displays) is strictly prohibited.