A Location Identifier takes the place of the name and the location of an airport, navigation aid, weather station, and manned air traffic control facility in air traffic control, telecommunications, computer programming, weather reports, and related services. There are several traditions of navigation. ... A technician checks data from a weather station. ... Air Traffic Control Towers (ATCTs) at Schiphol Airport Air Traffic Control (ATC) is a service provided by ground-based controllers who direct aircraft on the ground and in the air. ...

Assignment Authorities

The Federal Aviation Administration assigns three-letter identifiers (except those beginning with the letters N, W, Y, and Z), three and four character identifiers, and five-letter name codes for the United States and its jurisdictions. The Federal Aviation Administration is the entity of the United States government which regulates and oversees all aspects of civil aviation in the U.S. // Activities Along with the European Joint Aviation Authorities, the FAA is one of the two main agencies worldwide responsible for the certification of new aircraft. ...

The Department of the Navy assigns three-letter identifiers beginning with the letter N for the exclusive use of that Department. Seal The United States Department of the Navy was established by an Act of Congress on April 30, 1798, to provide administrative and technical support, and civilian leadership to the United States Navy and Marine Corps. ...

Transport Canada assigns two, three, and four character identifiers, including three letter identifiers beginning with letters Y and Z, for its areas of jurisdiction. Transport Canada is the department within the government of Canada which is responsible for developing regulations, policies and services of transportation in Canada. ...

The Federal Communications Commission assigns blocks of identifiers beginning with K and W for its area of responsibility. The block beginning with letter Q is under international telecommunications jurisdiction and is used by FAA Technical Operations to capture National Airspace equipment not published in this order. The FCCs official seal. ...

The National Weather Service assigns four-letter, one-number identifiers for certain weather requirements. The National Weather Service (NWS) is one of the six scientific agencies that make up the National Oceanic and Atmospheric Administration (NOAA) of the United States government. ...

The United States Air Force Weather Agency (AFWA), acting on behalf of all the military services, assigns special use four letter “KQXX” identifiers for use by deployed units supporting real world contingencies; deployed/in-garrison unites providing support during exercises; and units that have requested, but not yet received a permanent location identifier. The United States Air Force (USAF) is the aerospace branch of the United States armed forces. ... Shield of the Air Force Weather Agency The Air Force Weather Agency (AFWA) is the lead strategic weather center of the United States Air Force. ...

Assignment System

Three-letter identifiers are assigned as radio call signs to aeronautical navigation aids; to airports with a manned air traffic control facility or navigational aid within airport boundary; to airports that receive scheduled route air carrier or military airlift service, and to airports designated by the United States Customs Service as Airports of Entry. Some of these identifiers are assigned to certain aviation weather reporting stations. The United States Customs Service (now part of U.S. Customs and Border Protection or CBP) was the portion of the US Federal Government dedicated to keeping illegal products outside of US borders. ... An Airport of Entry (AoE) is an airport that provides customs and immigration services for incoming flights. ...

Most one-number, two-letter identifiers have been assigned to aviation weather reporting and observation stations and special-use locations. Some of these identifiers may be assigned to public-use landing facilities within the United States and its jurisdictions, which do not meet the requirements for identifiers in the three-letter series. In this identifier series, the number is always in the first position of the three-character combination.

Most one-letter, two-number identifiers are assigned to public-use landing facilities within the United States and its jurisdictions, which do not meet the requirements for identifiers in the three-letter series. Some of these identifiers are also assigned to aviation weather reporting stations.

• One-letter, two-number identifiers are keyed by the alphabetical letter. The letter may appear in the first, middle or last position in the combination of three characters. When the letter signifies an Air Traffic Control Center's area, the assignment will not change if the Center's boundaries are realigned.

• Identifiers in this series, which could conflict with the Victor, Jet or colored airway numbers are not assigned.

Two-letter, two-number identifiers are assigned to private-use landing facilities in the United States and its jurisdictions which do not meet the requirements for three-character assignments. They are keyed by the two-letter Post Office or supplemental abbreviation of the state with which they are associated. The two letter code appears in the first two, middle, or last two positions of the four character code. This temporary flight restriction map from the Federal Aviation Administration shows the boundaries of the regions controlled by the Area Control Centers within and adjoining the continental United States, as well as the IATA airport code of each such Center operated by the United States. ... The following is a list of abbreviations used by the United States Postal Service. ...

A single five-letter pronounceable combination serves as the fix name, assigned identifier and computer code. If a new fix is to be collocated with an existing navigation aid, Instrument Landing System marker, waypoint, or other type fix, the original name or name-code applies to both. The NDB station co-located with Middle Marker of Beijing Capital International Airport ILS RWY36L The Instrument Landing System (ILS) is an instrument approach system which provides precise guidance to an aircraft approaching a runway and in some cases along the runway surface. ... A Marker Beacon is a beacon used in Aviation in conjunction with an Instrument Landing System(ILS), to give pilots a means to determine distance to the runway. ... A waypoint is a fixed location with a specified longitude and latitude and UTM coordinates, which is maintained by a global positioning system (GPS). ...

Weather Offices and Stations, may be assigned in any of the series of Location Identifiers, depending upon type or combination of Station. Generally, a Weather Service Office at an Airport is given a three-letter identifier. AMOS equipment may be polled with any combination of three-character identifiers. Some types of aviation weather reporting stations are listed with two-number, one-letter identifiers. The National Weather Service (NWS) is one of the six scientific agencies that make up the National Oceanic and Atmospheric Administration (NOAA) of the United States government. ...

External link

• Location Identifiers FAAO 7350.7 - Federal Aviation Administration document describing the assignment of Location Identifiers; revised and published every 112 days