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
MD& MDA MDB MDC MDD MDE MDF MDG MDH MDI MDJ MDK MDL MDM MDN MDO MDP MDQ MDR MDS MDT MDU MDV MDW MDX MDY MDZ
MDRA MDRD MDRF MDRG MDRI MDRJ MDRM MDRN MDRO MDRP MDRR MDRS MDRT MDRV MDRW MDRX MDRY
1 MDRY Madison Ry. Co., Inc. added 1/1978; eliminated 1/1979   NAKINA
2 MDRY Madison Ry. Co., Inc. added 1/78; eliminated 1/79   NRHS
3 MDRY *MADISON RWY. CO.     PWRC
4 MDRY *RETIRED 08-21-91 ATP (0468)     PWRC
5 MDRY *MIDLANDS RAILWAY     PWRC