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
O& O2 O3 O4 O5 O6 O7 O8 O9 OA OB OC OD OE OF OG OH OI OJ OK OL OM ON OO OP OQ OR OS OT OU OV OW OX OY OZ
ON& ONA ONB ONC OND ONE ONF ONG ONH ONI ONJ ONK ONL ONM ONN ONO ONP ONR ONS ONT ONV ONW ONX ONY
ONCC ONCD ONCE ONCF ONCM ONCO ONCP ONCR ONCT ONCX ONCZ
1 ONCT Ontario Central R.R. Corp. added 1/1980; 1/1980-7/2005   NAKINA
2 ONCT Ontario Central R.R. Corp. added 1/80; 1/80-7/2000   NRHS
3 ONCT ONTARIO CENTRAL RAILROAD CORPORATION     PWRC
4 ONCT Ontario Central Railroad     RSRV
5 ONCT ONTARIO CENTRAL RAILROAD CORPORATIO     SCAC3