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
SPDA SPDB SPDD SPDE SPDF SPDG SPDJ SPDO SPDP SPDR SPDT SPDU SPDW SPDX SPDZ
1 SPDZ UNION PACIFIC [SOUTHERN PACIFIC TRANSP CO]     PWRC
2 SPDZ Southern Pacific Railroad (Union Pacific Railroad)     RSRV
3 SPDZ UNION PACIFIC RAILROAD     SCAC4