| 1 | ROL | Aeroel Airways Ltd. | Callsign: Aeroel, | IL | AVCODES |
| 2 | ROL | Aeroel Airways | | | ICAO1 |
| 3 | ROLA | ROWLAND DRAYAGE CORPORATION | | | SCAC3 |
| 4 | ROLB | ROLLET BROS LOGISTICS | | | SCAC4 |
| 5 | ROLD | ROULAND TRUCKING SERVICE | | | SCAC3 |
| 6 | ROLD | ROLLET BROS TRUCKING CO INC | | | SCAC4 |
| 7 | ROLF | ROLFE RACING INC | | | SCAC4 |
| 8 | ROLI | ROLLING STONE CARTAGE INC | | | SCAC3 |
| 9 | ROLI | ROLLING STONE CARTAGE INC | | | SCAC4 |
| 10 | ROLJ | ROLLMAN, J & SON, INC | | | SCAC3 |
| 11 | ROLJ | ROLLMAN, J AND SON INC | | | SCAC4 |
| 12 | ROLK | ROLCO TRAILERS INC | | | SCAC4 |
| 13 | ROLL | ROLL-OFFS TRUCKING INC | | | SCAC4 |
| 14 | ROLM | ROLLINS MOVING AND STORAGE, INC | | | SCAC3 |
| 15 | ROLM | ROLLINS MOVING AND STORAGE, INC | | | SCAC4 |
| 16 | ROLMA | Rolmafer | | CH | VKM |
| 17 | ROLN | ROLAND TRUCKING COMPANY | | | SCAC3 |
| 18 | ROLO | R O L I SYSTEMS INC | | | SCAC3 |
| 19 | ROLO | RO-LOU TRANSPORT LTEE | | | SCAC4 |
| 20 | ROLP | ROLAND LEASING CORP | | | SCAC3 |
| 21 | ROLP | ROLAND LEASING CORP | | | SCAC4 |
| 22 | ROLQ | ROLLINS TERMINALS INC | | | SCAC3 |
| 23 | ROLS | ROSEN LIVESTOCK | | | SCAC3 |
| 24 | ROLU | RO-LO PACIFIC LINE | | | PWRC |
| 25 | ROLU | Ro-Lo Pacific Line | | | RSRV |
| 26 | ROLU | RO-LO PACIFIC LINE | | | SCAC3 |
| 27 | ROLU | ROLLTAINER | | | SCAC4 |
| 28 | ROLV | ROUSSLANG TRANSFER | | | SCAC3 |
| 29 | ROLX | Empire Railcar Corp. | 7/2005 (not listed) | | NAKINA |
| 30 | ROLX | Robson Leather Co., Ltd. | added 7/1960; 4/1961-4/1970; eliminated 7/1970 | | NAKINA |
| 31 | ROLX | Royal Manufacturing Co. of Duquesne | 1/1945-4/1947 | | NAKINA |
| 32 | ROLX | Robson Leather Co., Ltd. | added 7/60; 4/61-4/70; eliminated 7/70 | | NRHS |
| 33 | ROLX | *ROYAL MANUFACTURING CO. OF DUQUESNE | | | PWRC |
| 34 | ROLX | *ROBSON LEATHER CO., LTD. | | | PWRC |
| 35 | ROLX | +EMPIRE RAILCAR CORP. | | | PWRC |
| 36 | ROLX | ROBSON LEATHER CO LTD | | | SCAC3 |
| 37 | ROLX | EMPIRE RAILCAR CORPORATION | | | SCAC4 |
| 38 | ROLY | ROLLEY MOVING & STORAGE INC | | | SCAC3 |
| 39 | ROLY | ROLYS TRUCKING INC | | | SCAC4 |
