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
DPLD DPLL DPLN DPLS DPLX
1 DPLX Davenport Cement Co. added 1/1984; eliminated 4/1985   NAKINA
2 DPLX Martin-Marietta Corp. added 1/1979; 1/1980; eliminated 7/1983   NAKINA
3 DPLX Martin-Marietta Cement, Division of Martin-Marietta Corp. added 10/1972; 1/1975; eliminated 1/1979   NAKINA
4 DPLX Dewey Portland Cement Co., Division of Martin-Marletta Corp. added 1/1965; 7/1965-4/1970; eliminated 10/1972   NAKINA
5 DPLX Dewey Portland Cement Co., Division of Martin-Marletta Corp. added 1/65; 7/65-4/70; eliminated 10/72   NRHS
6 DPLX Martin-Marietta Cement, Division of Martin-Marietta Corp. added 10/72; 1/75; eliminated 1/79   NRHS
7 DPLX Martin-Marietta Corp. added 1/79; 1/80   NRHS
8 DPLX Davenport Cement Co. eliminated 4/85   NRHS
9 DPLX DAVENPORT CEMENT CO.[MARTIN-MARIETTA CORP.; DEWEY PORTLAND CEMENT CO.]     PWRC
10 DPLX Davenport Cement     RSRV