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 4D Egypt Air Holding Company d/b/a Air Sinai ICAO: ASD, Callsign: Air Sinai, IATA Prefix: 903, Designator 4D recalled by IATA. ET AVCODES
2 4D Aerro Direkt S.r.l. ICAO: DIR, Callsign: Direkt Wings, RO AVCODES
3 4D Egypt Air Holding Company d/b/a Air Sinai ICAO: ASD, Callsign: Air Sinai, Name chanegd to Air Sphinx. IATA Accounting and Prefix code recalled. ET AVCODES