Guide Summary
When booking a flight, tracking baggage, or checking airport departure boards, you often notice mysterious 3- or 4-letter codes. For the city of Tangier in Morocco, these codes are TNG and GMTT.
But what do these codes actually mean, and why does Ibn Battouta Airport have two different ones? Here is a simple explanation.
The IATA Code: TNG
The 3-letter code TNG is the IATA (International Air Transport Association) code.
This is the public-facing code that you see everywhere as a traveler:
- On your electronic plane ticket.
- On the barcode luggage tag attached to your suitcase.
- On booking websites (Skyscanner, Expedia, etc.) when you type “Tangier”.
- On flight information display screens in the terminal.
The code TNG was chosen simply because these are the main consonants of the city’s name (TaNGer). Its purpose is to standardize global airline ticketing and passenger logistics to avoid any confusion between cities with similar names.
The ICAO Code: GMTT
The 4-letter code GMTT is the ICAO (International Civil Aviation Organization) code.
Unlike the IATA code, you will rarely encounter this code as a passenger. It is used technically by:
- Pilots in the cockpit.
- Air traffic controllers in the control tower.
- Aviation meteorologists.
- Computerized flight planning systems.
How to Decode GMTT?
The structure of ICAO codes is geographical and logical (unlike IATA codes, which are often abbreviations of city names):
- G: Region of the world (G corresponds to Northwest Africa, covering Morocco, Algeria, Senegal, etc.)
- M: Country (M for Morocco). All Moroccan airports therefore start with GM (GMMN for Casablanca, GMMX for Marrakech).
- T: Control region (Tangier)
- T: The specific airport of Tangier Ibn Battouta.
Why is the Airport Named “Ibn Battouta”?
Beyond its technical codes, the airport is named after the most famous Moroccan explorer: Ibn Battouta (born in Tangier in 1304).
Considered one of the greatest travelers in history, he covered nearly 120,000 kilometers over 29 years, visiting Africa, the Middle East, India, Southeast Asia, and China—long before Marco Polo. It was therefore fitting that the main air gateway to his hometown bears his name in honor of his extraordinary journeys.