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
U0 U1 U2 U3 U4 U5 U6 U7 U8 U9 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UO UP UQ UR US UT UU UV UW UX UY UZ
UKA UKF UKI UKK UKL UKM UKN UKO UKP UKR UKS UKT UKU UKW UKZ
1 UKO Yukos Callsign: Yukos Bulgaria, Name changed to Naftex Bulgaria Holding BG AVCODES
2 UKO Naftex Bulgaria Holding Callsign: Naftex Bulgaria, Name changed from Yukos. Ceased operations. BG AVCODES