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
OPA OPB OPC OPD OPE OPF OPG OPH OPI OPJ OPK OPL OPM OPN OPO OPP OPR OPS OPT OPU OPV OPW OPX
OPXP
1 OPX Ohio Power Co. added 10/1958; 4/1961-7/2005   NAKINA
2 OPX The Ohio Power Co. 1/1943-10/1957; eliminated 10/1958   NAKINA
3 OPX The Ohio Power Co. 1/52-10/57; eliminated 10/58   NRHS
4 OPX Ohio Power Co. added 10/58; 4/61-7/2000   NRHS
5 OPX OHIO POWER CO.     PWRC
6 OPX Ohio Power     RSRV
7 OPX OHIO POWER CO.     SCAC4
8 OPXP OCEAN PACIFIC EXPRESS     SCAC4