ICAO Doc 7910, "Location Indicators," is an authoritative, data-heavy reference manual providing the global directory for four-letter codes assigned to airports and aeronautical facilities. It structures data by country/region, including location indicators, IATA codes, and flight information region (FIR) addresses to support air traffic management and flight planning. To access the most current official version of the manual, visit the ICAO Store. 7910 Location Indicators | PDF | Civil Aviation - Scribd
The first letter tells you the continent or region: doc 7910 pdf
So the next time you see KJFK or EGLL on a screen, remember the humble PDF that gave it its name. It turns out, the sky is organized by a very, very good filing system. ICAO Doc 7910, "Location Indicators," is an authoritative,
A: The official PDF contains high-resolution tables, scanned signatures of ICAO secretaries, and embedded fonts to ensure universal printing accuracy. K - Contiguous United States C - Canada
Do not search for "doc 7910 pdf" expecting to find aircraft performance data. This document is strictly about where things are located.