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
M& M- M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 MA MB MC MD ME MF MG MH MI MJ MK ML MM MN MO MP MQ MR MS MT MU MV MW MX MY MZ
MP& MPA MPB MPC MPD MPE MPF MPG MPH MPI MPJ MPK MPL MPM MPN MPO MPP MPQ MPR MPS MPT MPU MPV MPW MPX MPY MPZ
MP&N
1 MP&N Mineral Point & Northern Ry. Co. 7/1923   NAKINA
2 MP&N MINERAL POINT & NORTHERN RWY. CO.     PWRC