Dauntless Aviation
FAA Written Test Prep
Checkride Oral Exam Prep
Pilot eLogbook System
Aircraft Systems Reviews
EASA Theory Exam Prep
China ATPL Theory Prep
UK PPL/IMC Theory Prep
Transport Canada Theory Exam Prep
Aircraft Recognition Tutor
SimPlates IFR Plates
FAR/AIM Reference
All Software and Apps
Aviation Freebies
Free Aircraft Checklists
MetalWings Diecast
Products by Platform
Knowledgebase / FAQ
SBD Dauntless
Bulk Purchases
Site/Lab Licensing
Affiliate Program

Aviation Glossary :: Station Identifier  Aviation Glossary :: Station Identifier FAA Written Test Preparation
Aviation Glossary Welcome to the Dauntless Aviation Glossary!

At Dauntless, our editorial staff maintains the web's largest unified glossary of aviation terms. This glossary is built from a combination of official, quasi-official, and proprietary sources (including original material that we develop oursselves). Uniquely, we often provide multiple definitions of a given term so that you can find that which best applies to you. In order to maximize your learning efficiency, this glossary (and similar ones for our international users) is incresingly fully integrated into our aviation learning apps, including our FAA written test prep and FAA practical test prep software and apps. If you like this glossary, you'll love them with their polished learning environments and world's best and clearest content (please do give them a try.).

Station Identifier
Station Identifier
The station identifier, in ICAO format, is included in all reports to identify the station to which the coded report applies.

The ICAO airport code is a four-letter alphanumeric code designating each airport around the world. The ICAO codes are used for flight planning by air traffic controllers and airline operation departments. These codes are not the same as the International Air Transport Association (IATA) codes encountered by the general public used for reservations, baggage handling and in airline timetables. ICAO codes are also used to identify weather stations located on- or off-airport.

Unlike the IATA codes, the ICAO codes have a regional structure. For example, the first letter is allocated by continent, the second is a country within the continent; the remaining two are used to identify each airport.

In the contiguous U. S., ICAO station identifiers are coded K followed by the three-letter IATA identifier. For example, the Seattle, Washington (IATA identifier SEA) becomes the ICAO identifier KSEA.

ICAO station identifiers in Alaska, Hawaii, and Guam begin with the continent code P, followed by the proper country code (A, H, and G respectively), and the two-letter airport identifier.


  • PANC Anchorage, AK
  • PAOM Nome, AK
  • PHNL Honolulu, HI
  • PHKO Keahole Point, HI
  • PGUM Agana, Guam
  • PGUA Anderson AFB, Guam
Canadian station identifiers begin with C, followed by the country code, and the two-letter airport identifier.


  • CYYZ Toronto, Canada
  • CYYC Calgary Canada
  • CYQB Quebec, Canada
  • CYXU London, Canada
  • CZUM Churchill Falls, Canada
Mexican and western Caribbean station identifiers begin with M, followed by the proper country code and two-letter airport identifier.


  • MMMX Mexico City, Mexico
  • MUGM Guantanamo Bay, Cuba
  • MDSD Santo Domingo, Dominican Republic
  • MYNN Nassau, Bahamas
Eastern Caribbean station identifiers begin with T, followed by the proper country code, and airport identifier.


  • TJSJ San Juan, Puerto Rico
  • TIST Saint Thomas, Virgin Islands
For a list of Alaskan, Hawaiian, Canadian, Mexican, Pacific, and Caribbean ICAO identifiers see FAA Order 7350.7. For a complete worldwide listing, see ICAO Document 7910, “Location Indicators.” Both are available on-line.
source: FAA/NOAA Aviation Weather Services (AC 00-45G)

Ace Any FAA Written Test!
Actual FAA Questions / Free Lifetime Updates
The best explanations in the business
Fast, efficient study.
Pass Your Checkride With Confidence!
FAA Practical Test prep that reflects actual checkrides.
Any checkride: Airplane, Helicopter, Glider, etc.
Written and maintained by actual pilot examiners and master CFIs.
The World's Most Trusted eLogbook
Be Organized, Current, Professional, and Safe.
Highly customizable - for student pilots through pros.
Free Transition Service for users of other eLogs.
Our sincere thanks to pilots such as yourself who support AskACFI while helping themselves by using the awesome PC, Mac, iPhone/iPad, and Android aviation apps of our sponsors.

Disclaimer: While this glossary in most cases is likely to be highly accurate and useful, sometimes, for any number of editorial, transcription, technical, and other reasons, it might not be. Additionally, as somtimes you may have found yourself brought to this page through an automated term matching system, you may find definitions here that do not match the cotext or application in which you saw the original term. Please use your good judgement when using this resource.

© 2024 Dauntless Aviation • 4950C York Road 110, Buckingham, PA, 18912, USA • Contact UsPrivacy Policy