Doc 7910, Location Indicators. Edition No. 191, March 2024.
This document contains a list of ICAO four-letter location indicators and, for ease of reference, corresponding three-character International Air Transport Association (IATA) location identifier codes for geographical locations throughout the world. Also included is a list of addresses of centres in charge of flight information regions (FIRs) and/or upper flight information regions (UIRs). This edition incorporates material received from 23/11/23 to 29/2/24.
