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
A& A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ
ARA ARB ARC ARD ARE ARF ARG ARH ARI ARJ ARK ARL ARM ARN ARO ARP ARQ ARR ARS ART ARU ARV ARW ARX ARY ARZ
ARDA ARDB ARDC ARDD ARDE ARDG ARDH ARDI ARDJ ARDK ARDL ARDM ARDO ARDP ARDQ ARDR ARDS ARDT ARDU ARDV ARDW ARDX
1 ARDP Union Pacific R.R. Co. added 4/1997; 7/2000-7/2005   NAKINA
2 ARDP Missouri Pacific System 1/1994; eliminated 4/1997   NAKINA
3 ARDP Doniphan, Kensett & Searcy Ry. eliminated 1/1979; 1/1980   NAKINA
4 ARDP Missouri Pacific R.R. Co. 1/1975   NAKINA
5 ARDP Missouri Pacific R.R. Co. Jan-75   NRHS
6 ARDP Doniphan, Kensett & Searcy Ry. eliminated 1/79; 1/80   NRHS
7 ARDP Missouri Pacific System 1/94; eliminated 4/97   NRHS
8 ARDP Union Pacific R.R. Co. added 4/97; 7/2000   NRHS
9 ARDP UP [MISSOURI PACIFIC RAILROAD (LEASED THROUGH ART FROM E.I. DUPONT)]     PWRC
10 ARDP Missouri Pacific Railroad (Union Pacific Railroad)     RSRV