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
SWCA SWCB SWCC SWCE SWCH SWCI SWCK SWCL SWCO SWCQ SWCR SWCT SWCU SWCV SWCW SWCX SWCY
1 SWCX The Sherwin-Williams Co. of Canada, Ltd. 7/1937-4/1961; eliminated 7/1964   NAKINA
2 SWCX Swift Chemical Co. added 1/1974; 1/1975; eliminated 10/1975   NAKINA
3 SWCX Swift Agricultural Chemicals Corp. added 10/1975; 1/1980; eliminated 7/1980   NAKINA
4 SWCX Estech General Chemicals Corp. added 7/1980; eliminated 10/1981   NAKINA
5 SWCX Estech, Inc. added 10/1981; eliminated 1/1985   NAKINA
6 SWCX The Sherwin-Williams Co. of Canada, Ltd. 4/38-4/61; eliminated 7/64   NRHS
7 SWCX Swift Chemical Co. added 1/74; 1/75   NRHS
8 SWCX Swift Agricultural Chemicals Corp. 1/80; eliminated 7/80   NRHS
9 SWCX Estech General Chemicals Corp. added 7/80; eliminated 10/81   NRHS
10 SWCX Estech, Inc. added 10/81; eliminated 1/85   NRHS
11 SWCX *SHERWIN-WILLIAMS CO. OF CANADA, LTD.     PWRC
12 SWCX *ESTECH, INC. [SWIFT AGRICULTURAL CHEMICALS CORP.]     PWRC
13 SWCX SWEETWATER CENTRAL RAILROAD     PWRC
14 SWCX Estech     RSRV