Әуе компаниялары кодтары-U

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|DOD
|USAF Air Mobility Operations Control Center
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|United States
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|DOI
|U.S. Department of the Interior
|INTERIOR
|United States
|Office of Aircraft Services
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|EXM
|United Kingdom Civil Aviation Authority
|EXAM
|United Kingdom
|CAA Flight Examiners
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|GIH
|Union des Transports Africains de Guinee
|TRANSPORT AFRICAIN
|Guinea
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|GKA
|US Army Parachute Team
|GOLDEN KNIGHTS
|United States
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|U5
|GWY
|USA3000 Airlines
|GETAWAY
|United States
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|UAB
|United Arabian Airlines
|UNITED ARABIAN
|Sudan
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|UA
|UAL
|United Airlines
|UNITED
|United States
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|UAC
|United Air Charters
|UNITAIR
|Zimbabwe
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|UCS
|United Carriers Systems
|UNITED CARRIERS
|United States
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|UEA
|United Eagle Airlines
|UNITED EAGLE
|China
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|U2
|UFS
|United Feeder Service
|FEEDER EXPRESS
|United States
|formerly part of United Express
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|CFU
|United Kingdom Civil Aviation Authority
|MINAIR
|United Kingdom
|Civil Aviation Authority Flying Unit
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|KRF
|United Kingdom Royal VIP Flights
|KITTYHAWK
|United Kingdom
|In Military Aircraft
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|KRH
|United Kingdom Royal VIP Flight 
|SPARROWHAWK
|United Kingdom
|In Civil Chartered Aircraft
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|SDS
|United Kingdom Civil Aviation Authority 
|STANDARDS
|United Kingdom
|Training Standards
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|TQF
|United Kingdom Royal VIP Flights
|RAINBOW
|United Kingdom
|Helicopter Flights
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|CGX
|United States Coast Guard Auxiliary
|COASTGUARD AUXAIR
|United States
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|AGR
|United States Department Of Agriculture
|AGRICULTURE
|United States
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|UAD
|University Air Squadron
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|United Kingdom
|Colerne
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|UAJ
|University Air Squadron
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|United Kingdom
|Glasgow
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|UAA
|University Air Squadron
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|United Kingdom
|Leuchars
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|UAH
|University Air Squadron
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|United Kingdom
|Newton
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|HBU
|Universal Avia
|KHARKIV UNIVERSAL
|Ukraine
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|HLE
|UK HEMS
|HELIMED
|United Kingdom
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|U7
|JUS
|USA Jet Airlines
|JET USA
|United States
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|LEA
|Unijet
|LEADAIR
|France
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|MSH
|US Marshals Service
|MARSHALAIR
|United States
|US Department of Justice
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|NDU
|University of North Dakota
|SIOUX
|United States
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|PNA
|Universal Airlines
|PACIFIC NORTHERN
|United States
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|RAU
|Uganda Royal Airways
|UGANDA ROYAL
|Uganda
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|SAU
|United Aviation Services
|UNISERVE
|Spain
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|U6
|SVR
|Ural Airlines
|SVERDLOVSK AIR
|Russia
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|TRB
|Ukraine Transavia
|KIROVTRANS
|Ukraine
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|UAF
|United Arab Emirates Air Force
|UNIFORCE
|United Arab Emirates
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|UAI
|Union Africaine des Transports
|UNAIR
|Ivory Coast
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|UCC
|Uganda Air Cargo
|UGANDA CARGO
|Uganda
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|UCH
|US Airports Air Charter
|US CHARTER
|United States
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|UCO
|Ucoaviacion
|UCOAVIACION
|Spain
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|UES
|Ues-Avia Aircompany
|AVIASYSTEM
|Ukraine
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|UGA
|Uganda Airlines
|UGANDA
|Uganda
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|UGC
|Urgemer Canarias
|URGEMER
|Spain
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|UHL
|Ukrainian Helicopters
|UKRAINE COPTERS
|Ukraine
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|UHS
|Ulyanovsk Higher Civil Aviation School
|PILOT AIR
|Russia
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|UJR
|Universal Jet Rental de Mexico
|UNIVERSAL JET
|Mexico
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|UJT
|Universal Jet Aviation
|UNI-JET
|United States
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|UKI
|UK International Airlines
|KHALIQ
|United Kingdom
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|UKL
|Ukraine Air Alliance
|UKRAINE ALLIANCE
|Ukraine
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|UF
|UKM
|UM Airlines
|UKRAINE MEDITERRANEE
|Ukraine
|Ukraine Mediterranean Airlines
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|UKN
|Ukraine Air Enterprise
|ENTERPRISE UKRAINE
|Ukraine
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|UKP
|United Kingdom Home Office
|POLICE
|United Kingdom
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|6Z
|UKS
|Ukrainian Cargo Airways
|CARGOTRANS
|Ukraine
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|ULT
|Ultrair
|ULTRAIR
|United States
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|UMS
|Unitemp-M
|TOPAZ
|Russia
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|UNC
|Uni-Fly
|UNICOPTER
|Denmark
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|UNF
|Union Flights
|UNION FLIGHTS
|United States
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|UNJ
|Universal Jet
|PROJET
|Spain
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|UNS
|Unsped Paket Servisi
|UNSPED
|Turkey
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|UNU
|Unifly Servizi Aerei
|UNIEURO
|Italy
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|UPL
|Ukrainian Pilot School
|PILOT SCHOOL
|Ukraine
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|5X
|UPS
|United Parcel Service
|UPS
|United States
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|URV
|Uraiavia
|URAI
|Russia
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|US
|AWE
|US Airways
|CACTUS
|United States
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|USC
|US Check Airlines
|STAR CHECK
|United States
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|USF
|USAfrica Airways
|AFRICA EXPRESS
|United States
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|UH
|USH
|US Helicopter
|US-HELI
|United States
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|USJ
|US Jet
|USJET
|United States
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|USX
|US Express
|AIR EXPRESS
|United States
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|UT
|UTA
|UTair Aviation
|UTAIR
|Russia
|WAS P2 till 2006
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|UTG
|UTAGE
|UTAGE
|Equatorial Guinea
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|UTR
|Utair South Africa
|AIRUT
|South Africa
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|UTS
|Ukrainian State Air Traffic Service Enterprise
|AIRRUH
|Ukraine
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|UTU
|Urartu-Air
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|Armenia
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|UVA
|Universal Airways
|UNIVERSAL
|United States
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|UVG
|Universal Airlines
|GUYANA JET
|Guyana
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|UVM
|Uvavemex
|UVAVEMEX
|Mexico
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|AIO
|United States Air Force
|AIR CHIEF
|United States
|Chief of Staff
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|UVN
|United Aviation
|UNITED AVIATION
|Kuwait
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|HY
|UZB
|Uzbekistan Airways
|UZBEK
|Uzbekistan
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|PS
|AUI
|Ukraine International Airlines
|UKRAINE INTERNATIONAL
|Ukraine
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|WEC
|Universal Airlines
|AIRGO
|United States
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|UH
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|US Helicopter Corporation 
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|United States
|
|-
|US 
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|Unavia Suisse 
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|Switzerland
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|-
|US
|USA
|USAir 
|
|United States
|now known as US Airways
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|US*
|
|USAir Express
|
|United States
|Allegheny Commuter Airlines, Inc. d/b/a USAir Express, was AL

Санат:Әуе компаниялары кодтары тізімі