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

USA USB USC USD USE USF USG USH USI USJ USK USL USM USN USO USP USQ USR USS UST USU USV USW USX USY

USAA USAB USAC USAD USAF USAG USAI USAM USAO USAS USAT USAU USAV USAW USAX USAZ