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
ARHA ARHB ARHC ARHD ARHE ARHF ARHG ARHI ARHL ARHM ARHQ ARHR ARHS ARHT ARHU ARHW ARHX ARHY
1 ARHX Arch Mineral Corp. added 7/1990; 1/1994; eliminated 10/1997; 7/2000-7/2005 (not listed)   NAKINA
2 ARHX Arch Mineral Corp. added 7/90; 1/94; eliminated 10/97; 7/2000   NRHS
3 ARHX ARCH MINERAL CORPORATION     PWRC
4 ARHX Arch Mineral Corporation     RSRV
5 ARHX ARCH MINERAL CORPORATION     SCAC4