Doc 7910 — Location Indicators. Edition No. 183, March 2022.
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 30/11/21 to 25/2/22.