Real world company prefixes
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O& 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
OIA OIB OIC OID OIE OIF OII OIL OIM OIN OIP OIR OIS OIT OIU OIX
O& 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
OIA OIB OIC OID OIE OIF OII OIL OIM OIN OIP OIR OIS OIT OIU OIX
| 1 | OIAB | ONE THOUSAND (1000) ISLAND AIRBOATS | SCAC4 | ||
| 2 | OIAG | OIA GLOBAL LOGISTICS | SCAC4 | ||
| 3 | OIBT | OUT AND IN BOAT TRANSIT INC | SCAC3 | ||
| 4 | OIC | Iwamoto Crane Co Ltd | ICAO1 | ||
| 5 | OIDZ | OIL DRY | PWRC | ||
| 6 | OIER | The Indiana & Ohio Rail System | eliminated 7/94 | NRHS | |
| 7 | OIER | OFFICIAL INTERMODAL EQUIPMENT REGIS | SCAC3 | ||
| 8 | OIER | INDIANA & OHIO RAIL SYSTEM | PWRC | ||
| 9 | OIER | The Indiana & Ohio Rail System | eliminated 7/1994 | NAKINA | |
| 10 | OIFI | ORE-IDA FO0DS INC | SCAC3 | ||
| 11 | OIFS | OILFIELD SERVICES INC | SCAC3 | ||
| 12 | OIIC | OPTIBLEND INDUSTRIES INC | SCAC4 | ||
| 13 | OILC | OIL CORPORATION | SCAC4 | ||
| 14 | OILCO | OILCO KDA Skopie, R Macedonia | BG | VKM | |
| 15 | OILE | OIL EXPRESS, INC | SCAC3 | ||
| 16 | OILF | OILFIELD EXPRESS | SCAC3 | ||
| 17 | OILI | OIL TRANSPORT CO INC | SCAC3 | ||
| 18 | OILI | OHLSON INTERNATIONAL LOGISTICS INCO | SCAC4 | ||
| 19 | OILJ | ONPOINT INTERNATIONAL LLC | SCAC4 | ||
| 20 | OILL | OIL TANK LINE INC | SCAC3 | ||
| 21 | OILL | ON TIME FREIGHT LTD | SCAC4 | ||
| 22 | OILM | OIL MAN CORPORATION, THE | SCAC4 | ||
| 23 | OILO | OWENS-ILLINOIS | SCAC3 | ||
| 24 | OILQ | OIL TRANSPORT INC | SCAC3 | ||
| 25 | OILS | OIL SUPPLY CORP | SCAC4 | ||
| 26 | OILT | OIL TRANSPORT COMPANY | SCAC3 | ||
| 27 | OILT | OIL CAPITAL TRANSPORTATION LLC | SCAC4 | ||
| 28 | OILW | OLAM INTERNATIONAL LIMITED | SCAC4 | ||
| 29 | OILX | Oil Tank Line Co. | 4/38-10/57; eliminated 10/60 | NRHS | |
| 30 | OILX | *TRANSCONTINENTAL TRANSPORT [OIL TANK LINE CO.] | PWRC | ||
| 31 | OILX | *(NATX) GENERAL ELECTRIC RAILCAR SERVICES CORPORATION | PWRC | ||
| 32 | OILX | General Electric Railcar Services Corp. | added 1/1984; 1/1994; eliminated 10/1994 | NAKINA | |
| 33 | OILX | North American Car Corp. | eliminated 1/1984 | NAKINA | |
| 34 | OILX | Transcontinental Transport, Inc. | added 10/1960; 4/1961; eliminated 7/1962 | NAKINA | |
| 35 | OILX | Oil Tank Line Co. | 7/1937-10/1957; eliminated 10/1960 | NAKINA | |
| 36 | OILX | GE Rail Services | RSRV | ||
| 37 | OILX | Transcontinental Transport, Inc. | added 10/60; 4/61 | NRHS | |
| 38 | OILX | General Electric Railcar Services Corp. | 1/94; eliminated 10/94 | NRHS | |
| 39 | OIMC | OUTER ISLANDS MARINE CORPORATION | SCAC3 | ||
| 40 | OIML | ORION INTERNATIONAL MEGA-LOGISTICS | SCAC4 | ||
| 41 | OIMT | OIM TRANSIT CORP | PWRC | ||
| 42 | OINC | OFS INC | SCAC4 | ||
| 43 | OINS | Avirunion, a.s., závod Nové Sedlo | CZ | VKM | |
| 44 | OIPC | OIL PRODUCTS CO | SCAC3 | ||
| 45 | OIRC | OILFIELD REQUIREMENTS CO & O R C TR | SCAC3 | ||
| 46 | OIRH | Avirunion, a.s., závod Rudolfova huť | CZ | VKM | |
| 47 | OISC | OIL SERVICES CO | SCAC3 | ||
| 48 | OISL | OAK INTERMODAL SERVICES LLC | SCAC4 | ||
| 49 | OISR | ONE THOUSAND (1000) ISLANDS SALES - | SCAC4 | ||
| 50 | OISV | OIL SERVICES INC | SCAC3 | ||
| 51 | OISV | ONYX INDUSTRIAL SERVICES INC | SCAC4 | ||
| 52 | OITF | OILFIELDS TRUCKING COMPANY | SCAC3 | ||
| 53 | OITO | OVERSEAS INTERNATIONAL TOURS INC | SCAC3 | ||
| 54 | OITS | OIL TRANSPORT SHIPPING LIMITED | SCAC3 | ||
| 55 | OIUA | OILFIELD INSTRUMENTATION USA | SCAC4 | ||
| 56 | OIX | Orion-x | ICAO1 | ||
| 57 | OIXI | OIX INCORPORATED | SCAC4 |