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
X1 X3 X4 X5 X6 X7 X8 X9 XA XB XC XD XE XF XG XH XI XJ XK XL XM XN XO XP XR XS XT XU XV XW XX XY XZ
XCA XCC XCE XCF XCH XCI XCL XCN XCO XCP XCR XCS XCT XCW XCX
XCWZ
1 XCWZ UNION PACIFIC [(XTRA) CHICAGO & NORTH WESTERN TRANS CO]     PWRC
2 XCWZ Chicago & North Western (Union Pacific Railroad)     RSRV
3 XCWZ UNION PACIFIC RAILROAD COMPANY     SCAC4