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
S& S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ
SWA SWB SWC SWD SWE SWF SWG SWH SWI SWJ SWK SWL SWM SWN SWO SWP SWQ SWR SWS SWT SWU SWV SWW SWX SWY SWZ
SWGB SWGD SWGE SWGF SWGG SWGH SWGJ SWGN SWGP SWGQ SWGR SWGU SWGX SWGY SWGZ
1 SWGX Scoular Welsh Grain Co. added 1/1971; 1/1975-1/1980; eliminated 4/1985   NAKINA
2 SWGX Scoular Welsh Grain Co. added 1/71; 1/75-1/80; eliminated 4/85   NRHS
3 SWGX *SCOULAR WELSH GRAIN CO.     PWRC
4 SWGX +SOUTHWEST GEORGIA RAILROAD EXCURSION AUTHORITY / SAM SHORTLINE EXCURSION TRAIN     PWRC
5 SWGX Southwest Georgia Railroad Excursion Authority (SAM Shortline Excursion Train)     RSRV
6 SWGX SOUTHWEST GEORGIA RAILROAD EXCURSIO     SCAC4