ICAO Document 7910. Location Indicators

The ICAO Doc 7910 Location Indicators is an indispensable technical publication for safety and efficiency within the modern aviation industry. This official document contains a comprehensive listing of the four-letter location indicators assigned by ICAO, linking them, where available, with the three-character identifier codes from the International Air Transport Association (IATA). For any pilot, flight dispatcher, or air traffic controller, this work is the definitive reference tool to accurately identify geographical locations, aerodromes, and transfer points in the international flight environment.

This 199th Edition, March 2026, includes critical updates regarding the addresses of centers in charge of flight information regions (FIR) and upper flight information regions (UIR). For a flight crew member or an aircraft commander, having precise data on airspace jurisdiction is a decisive factor in operational planning. The manual is designed to facilitate quick searches, ensuring that aeronautics personnel always work under the latest technical and regulatory standards of the international organization.

Maintaining updated technical documentation is a fundamental responsibility to ensure interoperability in global air transport. You can acquire this copy and explore other specialized resources in our ICAO documents section. With this volume, you will ensure that control center identification and aerodrome coding in your navigation plans strictly comply with current regulations in the sector.

FEATURES OF THE ICAO DOC 7910 LOCATION INDICATORS

• ✈️ Official Coding: Complete list of four-letter indicators (ICAO) for aerodromes worldwide.
• 🌐 IATA Synchronization: Includes corresponding IATA three-character codes for efficient cross-referencing.
• 📘 199th Edition: Technical version updated with a publication date of March 2026.
• 📍 FIR/UIR Management: Updated addresses for centers responsible for regional flight information.
• 📋 Professional Use: Reference document for air traffic control and dispatch services.

FREQUENTLY ASKED QUESTIONS (FAQS)

Does this manual include codes for all member countries?

Indeed, the ICAO Doc 7910 Location Indicators provides global geographical coverage, integrating official indicators from all ICAO contracting States.

Is it necessary for international route planning?

Yes, it is the primary source for the correct identification of control centers and aerodromes in the international air navigation system.

What additional information does it provide about flight regions?

The manual details the postal and telecommunication contact addresses for centers managing FIRs and UIRs worldwide.