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
OZA OZB OZC OZE OZF OZG OZH OZI OZJ OZK OZM OZN OZO OZR OZS OZT OZU OZW OZX OZZ
OZCH OZCL OZCO OZCX
1 OZCX Ozark-Mahoning Co. 1/1950-4/1970; eliminated 7/1972   NAKINA
2 OZCX Ozark Chemical Co. 7/1937-1/1941 (not listed); 1/1943-4/1947   NAKINA
3 OZCX Ozark-Mahoning Co. 1/52-4/70   NRHS
4 OZCX OZARK CAR CORP. [OZARK-MAHONING CO.; OZARK CHEMICAL CO.]     PWRC
5 OZCX OZARK-MAHONING CO     SCAC3