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
OHA OHB OHC OHD OHE OHF OHG OHH OHI OHJ OHK OHL OHM OHN OHO OHP OHR OHS OHT OHV OHW OHY
OHOX
1 OHOX U.S. Dept. of Energy Ohio Field 7/2000-7/2005 (not listed)   NAKINA
2 OHOX U.S. Dept. of Energy Ohio Field Jul-00   NRHS
3 OHOX U.S. DEPARTMENT OF ENERGY OHIO FIELD     PWRC
4 OHOX United States Department of Energy Ohio Field     RSRV