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
O& O2 O3 O4 O5 O6 O7 O8 O9 OA OB OC OD OE OF OG OH OI OJ OK OL OM ON OO OP OQ OR OS OT OU OV OW OX OY OZ
OGA OGB OGC OGD OGE OGG OGH OGI OGJ OGK OGL OGM OGN OGO OGP OGR OGS OGT OGV OGW OGX OGZ
OGSD OGSI OGSP OGSX OGSY
1 OGSX Alliant Energy added 4/2000; 7/2000; eliminated 1/2002; 7/2005   NAKINA
2 OGSX IES Utilities, Inc. added 1/1996; eliminated 4/2000   NAKINA
3 OGSX Iowa Southern Utilities Co. added 7/1980; 1/1994; eliminated 1/1996   NAKINA
4 OGSX Iowa Southern Utilities Co. added 7/80; 1/94; eliminated 1/96   NRHS
5 OGSX IES Utilities, Inc. added 1/96; eliminated 4/2000   NRHS
6 OGSX Alliant Energy added 4/2000; 7/2000   NRHS
7 OGSX ALLIANT ENERGY {IES UTILITIES INCORPORATED; IOWA SOUTHERN UTILITIES CO.]     PWRC
8 OGSX Iowa Southern Utilities     RSRV
9 OGSX ALLIANT ENERGY     SCAC4