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
MH& MHA MHB MHC MHD MHE MHF MHG MHH MHI MHJ MHK MHL MHM MHN MHO MHP MHQ MHR MHS MHT MHU MHV MHW MHX MHY MHZ
MHHC MHHI MHHL MHHR MHHT MHHU MHHV MHHX
1 MHHX Mohawk & Hudson Chapter, National Railway Historical Society added 10/2003; eliminated 1/2004; 7/2005 (not listed)   NAKINA
2 MHHX MOHAWK & HUDSON CHAPTER, NATIONAL RAILWAY HISTORICAL SOCIETY     PWRC
3 MHHX MOHAWK & HUDSON CHAPTER NATIONAL RA     SCAC4