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
S& S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ
SP& SPA SPB SPC SPD SPE SPF SPG SPH SPI SPJ SPK SPL SPM SPN SPO SPP SPQ SPR SPS SPT SPU SPV SPW SPX SPY SPZ
SPFC SPFE SPFG SPFH SPFI SPFK SPFL SPFM SPFO SPFQ SPFS SPFU SPFV SPFZ
1 SPFZ UNION PACIFIC [SOUTHERN PACIFIC TRANSP CO]     PWRC
2 SPFZ Southern Pacific Railroad (Union Pacific Railroad)     RSRV
3 SPFZ UNION PACIFIC RAILROAD COMPANY     SCAC4