Airport Code Unveiled:  Decoding 'DXN' and How IATA Assigns Them

Airport Code Unveiled: Decoding 'DXN' and How IATA Assigns Them

Welcome to the intriguing world of airport codes! You've probably come across those three-letter codes on your boarding pass, but have you ever wondered about their significance and how they are determined?

In this blog post, we'll delve into the importance of airport codes, shedding light on the unique 'DXN' code assigned to the upcoming Noida International Airport (NIA) in Jewar. #NIAunveilsDXN


Noida International Airport Perspective View

The Role of Airport Codes

Airport codes play pivotal roles within the aviation industry. They are distinct identifiers allocated to each airport, serving communication, navigation, and record-keeping functions. Two primary sets of codes exist: IATA codes and ICAO codes, each serving different purposes.

IATA Codes (Three-Digit Codes):

IATA codes are employed in passenger-centric operations, such as ticketing, boarding passes, and airport signage. For instance, the Indira Gandhi International Airport in Delhi is recognized by its IATA code "DEL."

  • The International Air Transport Association (IATA), headquartered in Montreal, is responsible for assigning these codes.
  • IATA codes are often crafted based on how the airport desires to represent itself, taking into account factors like city names, airport names, and geographical locations.
  • Ensuring the uniqueness of each code is crucial to prevent any two airports from sharing the same IATA code.
  • Specific countries may follow conventions when assigning IATA codes. For example, in India, military airports repurposed for civilian use receive codes beginning with 'IX,' such as Agartala Airport (IXA), Chandigarh Airport (IXC), and Leh Airport (IXL). Meanwhile, in Canada, all airport codes start with 'Y,' such as Toronto (YYZ) and Vancouver (YVR).


NIA CEO Christoph Schnellmann and COO Kiran Jain


The forthcoming Noida International Airport in Jewar has been granted the distinctive code 'DXN.' According to Christoph Schnellmann , CEO of NIA, 'DXN' encapsulates the airport's essence and its global connectivity. The 'D' signifies Delhi, India’s capital city, while 'N' symbolizes Noida, indicating the airport's location in Western Uttar Pradesh. The 'X' in 'DXN' is viewed as a representation of the airport's pivotal role in facilitating connections both within India and internationally.


ICAO Codes (Four-Letter Codes):

ICAO codes are utilized by industry professionals, including pilots and air traffic controllers, for aviation-related purposes. For the same Delhi airport, the ICAO code is "VIDP."

  • The International Civil Aviation Organization (ICAO), a United Nations agency, is responsible for assigning these codes.
  • ICAO codes may appear more cryptic to the general public but are critical identifiers for aviation professionals.
  • These codes adhere to global standards and offer a unique reference for each airport.


In summary, airport codes are indispensable for the efficient and precise identification of airports, serving both passenger-facing and professional functions. These codes are assigned based on diverse factors, encompassing the airport's identity, distinctiveness, and regional conventions. This ensures seamless communication and navigation within the aviation industry.

With the eagerly awaited Noida International Airport in Jewar receiving the exclusive code 'DXN,' we witness how airport codes can encapsulate an airport's essence and identity, adding an extra layer of fascination to the captivating world of aviation.

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