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
OSA OSB OSC OSD OSE OSF OSG OSH OSI OSJ OSK OSL OSM OSN OSO OSP OSQ OSR OSS OST OSU OSV OSW OSX OSY OSZ
OSZC OSZN OSZT
1 OSZ OTTAWA SILICA     PWRC
2 OSZC ONE SEVEN ONE FIVE SEVEN ZERO (1715     SCAC4
3 OSZN ONE SIX ZERO NINE NINE NINE ZERO (1     SCAC4
4 OSZT ONE SIX ZERO THREE EIGHT EIGHT (160     SCAC4