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
AMA AMB AMC AMD AME AMF AMG AMH AMI AMJ AMK AML AMM AMN AMO AMP AMQ AMR AMS AMT AMU AMV AMW AMX AMY AMZ
AMTA AMTB AMTC AMTD AMTE AMTG AMTH AMTI AMTJ AMTK AMTL AMTM AMTN AMTO AMTP AMTQ AMTR AMTS AMTT AMTU AMTV AMTW AMTX AMTY AMTZ
AMTKC
1 AMTK National R.R. Passenger Corp. NEC 1/1980-7/2005   NAKINA
2 AMTK National R.R. Passenger Corp. NEC 1/80-7/2000   NRHS
3 AMTK AMTRAK - NATIONAL RAILROAD PASSENGER CORP., NEC     PWRC
4 AMTK Amtrak (National Railroad Passenger Corporation)     RSRV
5 AMTK AMTRAK     SCAC3
6 AMTK AMTRAK     SCAC4
7 AMTK Amtrak   USA TRAFFIC
8 AMTKCA Amtrak California   US-CA TRAFFIC