ICAO airline designator system
E245413
The ICAO airline designator system is an international coding scheme that assigns unique three-letter identifiers to airlines for use in flight planning, air traffic control, and aviation operations.
All labels observed (4)
How this entity was disambiguated
This entity first appeared as the object of triple T2229587 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: ICAO airline designator system Context triple: [CPA, partOfSystem, ICAO airline designator system]
-
A.
GU (IATA airline designator)
GU is an IATA airline designator code assigned to a specific airline for identification in international air transport operations.
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B.
international civil aviation network
The international civil aviation network is the global system of interconnected airports, airlines, air traffic management, and regulatory frameworks that enables safe and efficient air travel and transport across countries worldwide.
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C.
International Air Transport Association
The International Air Transport Association (IATA) is a global trade association representing the world’s airlines, setting industry standards and supporting safe, efficient, and economical air transport.
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D.
International Center for Air Transportation
The International Center for Air Transportation is an MIT research center focused on advancing air transportation systems, operations, and policy through interdisciplinary analysis and innovation.
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E.
Convention on International Civil Aviation
The Convention on International Civil Aviation, also known as the Chicago Convention, is the foundational international treaty that established the framework and core principles for modern civil aviation regulation and cooperation among states.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: ICAO airline designator system Target entity description: The ICAO airline designator system is an international coding scheme that assigns unique three-letter identifiers to airlines for use in flight planning, air traffic control, and aviation operations.
-
A.
GU (IATA airline designator)
GU is an IATA airline designator code assigned to a specific airline for identification in international air transport operations.
-
B.
international civil aviation network
The international civil aviation network is the global system of interconnected airports, airlines, air traffic management, and regulatory frameworks that enables safe and efficient air travel and transport across countries worldwide.
-
C.
International Air Transport Association
The International Air Transport Association (IATA) is a global trade association representing the world’s airlines, setting industry standards and supporting safe, efficient, and economical air transport.
-
D.
International Center for Air Transportation
The International Center for Air Transportation is an MIT research center focused on advancing air transportation systems, operations, and policy through interdisciplinary analysis and innovation.
-
E.
Convention on International Civil Aviation
The Convention on International Civil Aviation, also known as the Chicago Convention, is the foundational international treaty that established the framework and core principles for modern civil aviation regulation and cooperation among states.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
airline identification system
ⓘ
aviation coding system ⓘ |
| abbreviation | ICAO airline codes ⓘ |
| appliesTo |
non-scheduled operators
ⓘ
scheduled airlines ⓘ state operators in some cases ⓘ |
| assigns | unique three-letter identifiers to airlines ⓘ |
| codeAssignmentAuthority |
International Civil Aviation Organization
ⓘ
surface form:
ICAO
|
| codeFormatDifferenceFrom | IATA airline designator system ⓘ |
| codeLength | three-letter ⓘ |
| codeLengthComparedToIATA | three-letter vs two-letter ⓘ |
| codeReassignmentPolicy | subject to ICAO rules and time limits ⓘ |
| codeType | alphanumeric ⓘ |
| codeUniquenessScope | global ⓘ |
| complements | ICAO telephony designator system ⓘ |
| dataDistribution |
official ICAO publications
ⓘ
state aeronautical information services ⓘ |
| dataPublishedAs | lists of airline designators ⓘ |
| designedFor | unambiguous operator identification worldwide ⓘ |
| distinctFrom | IATA airline designator system ⓘ |
| domain | civil aviation ⓘ |
| ensures | global uniqueness of airline identifiers within ICAO framework ⓘ |
| governedBy | ICAO provisions ⓘ |
| identifierFor |
air operators
ⓘ
airline operating agencies ⓘ airlines ⓘ |
| introducedBy | International Civil Aviation Organization ⓘ |
| language | Latin alphabet ⓘ |
| maintainedBy | International Civil Aviation Organization ⓘ |
| primaryUse |
air traffic control
ⓘ
aviation operations ⓘ flight planning ⓘ |
| relatedTo |
ICAO aircraft type designator system
ⓘ
ICAO airport code system ⓘ
surface form:
ICAO location indicator system
|
| scope | international ⓘ |
| standardizedIn | ICAO Doc 8585 ⓘ |
| supports |
efficiency of air traffic services
ⓘ
safety of air navigation ⓘ |
| usedBy |
air navigation service providers
ⓘ
airlines ⓘ airports ⓘ aviation regulators ⓘ |
| usedFor |
identifying operators in ATC communications
ⓘ
identifying operators in aviation databases ⓘ identifying operators in operational messages ⓘ |
| usedIn |
aeronautical information publications
ⓘ
air traffic management systems ⓘ flight plans ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: ICAO airline designator system Description of subject: The ICAO airline designator system is an international coding scheme that assigns unique three-letter identifiers to airlines for use in flight planning, air traffic control, and aviation operations.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
ICAO airline designator registry
this entity surface form:
ICAO airline designator registry
this entity surface form:
ICAO Doc 8585 airline designators
this entity surface form:
Designators for Aircraft Operating Agencies, Aeronautical Authorities and Services