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
OKA OKB OKC OKD OKE OKF OKG OKI OKJ OKK OKL OKM OKN OKO OKP OKR OKS OKT OKW OKX OKY
OKCC OKCE OKCG OKCR OKCT OKCU OKCX
1 OKCX Lone Star Industries, Inc. added 7/1983; 1/1994-7/2000; eliminated 1/2001; added 7/2001; 7/2005   NAKINA
2 OKCX Louisiana Cement Co., Inc. added 10/1981; eliminated 7/1983   NAKINA
3 OKCX OKC Corp. added 4/1980; eliminated 10/1981   NAKINA
4 OKCX OKC Corp. added 4/80; eliminated 10/81   NRHS
5 OKCX Louisiana Cement Co., Inc. added 10/81   NRHS
6 OKCX Lone Star Industries, Inc. 1/94-7/2000; eliminated 1/2001; added 7/2001   NRHS
7 OKCX LONE STAR INDUSTRIES, INC. [LOUISIANA CEMENT CO.; OKC CORP.]     PWRC
8 OKCX Lone Star Industries     RSRV
9 OKCX LONE STAR INDUSTRIES, INC.     SCAC4