Currently there are  271 airlines whose county is Unknown

Airline	Region
Access Air	Unknown
Aero Gem Cargo	Europe
Aero Latinas	Americas
Aero Wings	Americas
Aerobrujus	Americas
Aeroliano	Americas
Aerolineas ATC	Americas
Aerosol	Americas
African Air Services	Africa
Air Alps	Europe
Air C	Americas
Air Davinci Internacional	Americas
Air Forwarding International	Europe
Air Inter Afrique	Africa
Air Katobe	Unknown
Air Niagara	Americas
Air Service Chaika	Europe
Air Transport Service	Africa/MidEast
Air Vir	Europe
Air Western	Unknown
Air World	Unknown
Airleander	Pacific
Airwing Services	Unknown
AIT Freight Systems	Unknown
Alanaia	Europe
Alas del Sur	Americas
Allied Air	Africa/MidEast
Altran	Europe
Altruvera (Altuvera)	Europe
American Air Freight	Americas
Amphibious Airways	Pacific
Ango-Informa	Africa
Antares Airtransport MTB	Europe
Appollonian Airways	Europe
Aquelarre	Americas
Arch Aviation	Africa
Asa Pesada	Africa/MidEast/Pacific
Astral-Astrakhan	Europe
Astro Airways	Americas
AT Office	Africa/MidEast/Pacific
ATE(F)	Unknown
ATS	Africa/MidEast/Pacific
Avia Trano	Europe
Aviaheco	Americas
Aviasud	Americas
Aviation Hanseatiche Lufteederei	Europe
Avionic	Europe
Bell Air	Pacific
Bell Air	Americas
Bioair	Europe
British Holland	Europe
Bukhovina	Europe
Buryal	Europe
Business	Africa/MidEast/Pacific
Calair	Unknown
Cardinal Airlines	Americas
Cari Carga	Americas
Carol Air	Americas
Cat Air	Unknown
Celtic Island	Unknown
Channel Air Service	Unknown
Chermovskie Airlines	Europe
China Air Transport	Unknown
Co-Air	Africa/MidEast/Pacific
Codagro	Americas
Commercial Link Trade	Africa/MidEast/Pacific
Companie Cargo International	Unknown
County Airways	Unknown
Courtline Aviation	Unknown
CTMA	Unknown
Dantana	Unknown
Eagle Helicopters	Americas
East Asia Airlines	Africa/MidEast/Pacific
East Coast Airways	Africa
Ecopatrol	Unknown
Envoy	Unknown
Equatorial International Airlines	Africa
Esquel	Europe
Exec Jet	Unknown
Execujet Aviation	Unknown
Express Team	Unknown
Expresso Aero	Unknown
Fas Airways	Africa
Fly-Cargo	Americas
Gamek Orderbrecht	Africa
Global Transport	Americas
Go Voyages	Unknown
Goriotsa Avia	Europe
Heat Aviation	Pacific
Heli-Courlis	Europe
Helitours	Africa/MidEast/Pacific
Helyjet	Americas
HMHC	Americas
IAG	Unknown
Ibu Air	Africa
Imperial Air	Unknown
Independent Air Transport	Unknown
Inter American Airlines	Americas
Inter Ocean Airways	Africa/MidEast
Intercor	Americas
International Meat Company	Unknown
Isla Airlines	Americas
Jet Cargo	Europe
Jetsco	Unknown
Jetstar	Mid East/Pacific
Karus Flight Services	Americas
Khan Air	Unknown
Kindoc Airways	Africa
King Airlines	Europe
Kirovskoe Air	Unknown
Kluch Avia	Europe
La Cariben des Transportes Aeriens	Americas
Let Air (Letair)	Unknown
Liatz	Unknown
Lineas Aereas de Centro America	Americas
LoxAir	Americas
MAIT	Europe
Malinas	Africa/MidEast/Pacific
Manua Air Transport	Unknown
Mariysskiy Mashinostroiteinyy Z	Europe
Martin Air	Unknown
Memphis Air	Africa/MidEast/Pacific
Metro Express Service	Europe
MIA International	Africa
Morand	Unknown
MPP Mir	Europe
Naso (Nizne Sokol Plant)	Europe
New Africa Airlines	Unknown
Nizshnetagilskiy IIM	Europe
NJ Aviation	Americas
North Eastern Airlines	Africa/MidEast/Pacific
Northern-East Cargo Airlines	Unknown
Nouvelle Air Afrique	Africa/MidEast/Pacific
NTA Air	Americas
Ocean Wonders	Africa
OHY	Europe
OK Aviation	Unknown
Omega Air	Unknown
ORA Taxi Aereo	Americas
Oriol	Europe
Orion Services	Americas
Orionair	Unknown
Ost-Vest-Tranzit	Europe
P J Aero Services	Africa
Pacific Spirit	Pacific
Pan American Airways	Americas
PAZ	Unknown
Pearl Air	Unknown
Pearl Aviation	Unknown
Perfect Aviation	Mid East/Pacific
PHI	Unknown
Pink Cloud Airlines	Unknown
Pioneer Cargo Airlines	Europe
PITSA	Americas
Polae Airways	Europe
Polestar	Americas
Pontair	Unknown
Premiere Aero	Unknown
Primair Airlines	Europe
Proteus Aero Services	Unknown
Quick Air Trans	Unknown
Quickair	Americas
Regional Express	Americas
Riazan	Europe
Rica Transportes Aereas	Americas
Roopal Up Air	Africa/MidEast/Pacific
SA Potomayo (Servicios Areas Potomayo)	Americas
Sacha Avia	Europe
Sadeica	Unknown
Sarco	Africa/MidEast/Pacific
Savin	Africa
School Aerial Transport	Unknown
Servicios Aereos Mara	Americas
Siana	Europe
Sierra Pacific Gold Coast	Mid East/Pacific
Sigir	Europe
Silver Express	Americas
Simburg	Europe
Simera	Unknown
Sky Deck	Unknown
Sky Express	Europe
Skyjet Private Jet Charter	Americas
Sky-Pac International Couriers	Unknown
Skyways	Americas
SOTRAF	Unknown
South West Air	Americas
Southern Cross Aviation	Unknown
Southern International Cargo	Unknown
Spaero	Europe
Srar Up	Americas
Sum Air Services	Americas
Sun Air Charter	Unknown
Sunbird	Europe
Swordvale Aviation	Unknown
TAG	Unknown
TAL Trade Airlines	Americas
Tauria Mac	Europe
Taxi Aereo Regional	Americas
Taylor's Air Transport	Pacific
TBN Aircraft	Europe
TCS (Star Air Aviation)	Unknown
Technofly	Americas
Tekliaviaservis	Europe
Tellair	Unknown
The Night Fleet	Unknown
Thirnhill Aviation	Unknown
Trans Charter	Europe
Trans Lloyd Cargo	Americas
Trans Pacific Air	Americas
Transportation Systems	Americas
Transportes Aereas Coyahique	Americas
Transwest Airways	Pacific
Traslados	Americas
Trillium Air	Americas
Triton Taxi Aereo	Americas
Tropical Aviation	Americas
TSKB Alekseev	Europe
Turis Aer Amazonas	Americas
Unicapital Air	Unknown
United Express	Africa/MidEast/Pacific
UTC	Americas
VAX	Unknown
Vulture Airlines	Unknown
West Air Airlines	Africa
West Air Taxi Aereo	Americas
Westar Express	Americas
Westwing Aviation	Unknown
World Aerotaxi	Americas
World Wide Air	Pacific
Yellow Birds	Africa/MidEast/Pacific
Zonex Air Transport	Europe