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User Manual
tags, the ICAO codes minimize the possibility of duplicate identifiers and allow pilots to identify an airport’s
region and nearby large city.
ICAO codes for international airports use a 2-character identifier for the region, followed by 1 character that
identifies the airport’s general area, then 1 character of the airport.
For example, the ICAO code for Melbourne, Australia is YMML (IATA code MEL). All of Victoria and Tasma-
nia are in the YM region and the international airports in the Melbourne area start with “M”. Therefore, Melbourne
International Airport is YMML and the nearby Moorabbin Airport is YMMB.
In North America, the region containing Los Angeles begins with a “K” and the airport identifier of L.A. Inter-
national Airport is “KLAX”. Merrill Field in Anchorage, Alaska, begins with region code PA; its identifier is
PAMR.
The ICAO codes for the hundreds of smaller airports around the world whose names include numbers are not
preceded by a region prefix. For example, Barrie Executive Airport in Barrie, Ontario, Canada is NA3.
The following pages contain maps and a table of ICAO codes. The map of the continental U.S. contains the 2-
character codes that identify the U.S. (“K”) and the area (the following number). The world map shows the
region codes only.
The ICAO codes in the table are 2-character codes; like “K2” and similar ICAO codes for the U.S., these codes
identify both region (the first character) and a geographical area within the region (the second character). Where
necessary, the geographical area or nearest nation
is also included in parentheses. Please note that these regions and nations are provided for loca-tion
only and do not necessarily indicate possession by the nation indicated. All areas are as
described by the standard ARINC 424 format.
A list of worldwide ICAO codes is also available in book form from the International Civil Aviation Organiza-
tion. Ask for
ICAO Location Indicator
s, document number 7910/70.
Document Sales Unit - International Civil Aviation Organization
1000 Sherbrooke Street West - Suite 400
Montreal, Quebec - Canada H3A 2R2
Tel. 1 (514) 285-8219
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