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
P& P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 PA PB PC PD PE PF PG PH PI PJ PK PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ
PDA PDB PDC PDD PDE PDF PDG PDH PDI PDJ PDK PDL PDM PDN PDO PDP PDQ PDR PDS PDT PDU PDV PDW PDX PDY PDZ
PDQC PDQD PDQE PDQF PDQG PDQI PDQK PDQN PDQO PDQP PDQR PDQS PDQT PDQU PDQV PDQW PDQX PDQY
1 PDQX Castle Capital Corp. added 1/1971; 1/1975-1/1994; eliminated 1/1997; 7/2000-7/2005 (not listed)   NAKINA
2 PDQX Penn-Dixie Leasing Corp. added 1/1969; 4/1970; eliminated 1/1971   NAKINA
3 PDQX Callanan Equipment Corp. added 10/1967; eliminated 1/1969   NAKINA
4 PDQX Callanan Equipment Corp. added 10/67; eliminated 1/69   NRHS
5 PDQX Penn-Dixie Leasing Corp. added 1/69; 4/70   NRHS
6 PDQX Castle Capital Corp. 1/75-1/94; eliminated 1/97; 7/2000   NRHS
7 PDQX *PORT DEFIANCE, QUINALT & KLICKITAT RAILROAD     PWRC
8 PDQX +CASTLE CAPITAL CORP. [PENN-DIXIE LEASING CORP.; CALLANAN EQUIPMENT CORP.]     PWRC
9 PDQX Castle Capital Corporation     RSRV
10 PDQX CASTLE CAPITAL CORP.     SCAC4