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
D D& D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DY DZ
DP0 DPA DPB DPC DPD DPE DPF DPG DPH DPI DPJ DPK DPL DPM DPN DPO DPP DPR DPS DPT DPU DPV DPW DPX
DPCA DPCE DPCH DPCL DPCR DPCS DPCT DPCU DPCX DPCZ
1 DPCX Blue Circle, Inc. added 7/1983; eliminated 10/1988   NAKINA
2 DPCX Martin-Marietta Corp. added 1/1979; 1/1980; eliminated 7/1983   NAKINA
3 DPCX Martin-Marietta Cement, Division of Martin-Marietta Corp. added 10/1972; 1/1975; eliminated 1/1979   NAKINA
4 DPCX Dewey Portland Cement Co., Division of Martin-Marletta Corp. added 7/1962; 7/1965-4/1970; eliminated 10/1972   NAKINA
5 DPCX Dewwy Portland Cement Co., Division of American-Marietta Co. added 7/1960; 4/1961; eliminated 7/1962   NAKINA
6 DPCX Dewey Portland Cement Co. 8/1920-7/1932; 1/1941-10/1957; eliminated 7/1960   NAKINA
7 DPCX Dewey Portland Cement Co. 1/52-10/57; eliminated 7/60   NRHS
8 DPCX Dewwy Portland Cement Co., Division of American-Marietta Co. added 7/60; 4/61   NRHS
9 DPCX Dewey Portland Cement Co., Division of Martin-Marletta Corp. 7/65-4/70; eliminated 10/72   NRHS
10 DPCX Martin-Marietta Cement, Division of Martin-Marietta Corp. added 10/72; 1/75; eliminated 1/79   NRHS
11 DPCX Martin-Marietta Corp. added 1/79; 1/80   NRHS
12 DPCX Blue Circle, Inc. eliminated 10/88   NRHS
13 DPCX BLUE CIRCLE INC. [MARTIN-MARIETTA CORP.; DEWEY PORTLAND CEMENT CO.]     PWRC
14 DPCX Dewey Portland Cement (Dragon Products)     RSRV
15 DPCX Dragon Cement   USA TRAFFIC