Real world company prefixes

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M n O P Q R S T U V W X Y Z Ø
4A 4B 4C 4D 4E 4F 4G 4H 4I 4J 4K 4L 4M 4N 4O 4P 4Q 4R 4S 4T 4U 4V 4W 4X 4Y 4Z
1 4F Air City ICAO: ECE, Name changed from Air-City. Railway Service D AVCODES
2 4F Air Nigeria plc   WAN AVCODES
3 4F Frontier Air Ltd.   CDN AVCODES
4 4F Freedom Airlines Express Ltd. ICAO: FDT, Callsign: Freedom Eagle, ICAO callsign changed from Freedom Ero EAK AVCODES
5 4F Air City ICAO code ECE recalled. Name changed from Air-City. Railway Service D AVCODES