| 1 | RRL | Rolls Royce Ltd. (Military Aviation) | Callsign: Merlin, | GB | AVCODES |
| 2 | RRL | Rolls-Royce Limited | | | ICAO1 |
| 3 | RRL | Rhenus Rail Logistics GmbH | Duisburg | D | privat-bahn.de |
| 4 | RRL | Rail Release GmbH | | NL | VKM |
| 5 | RRLA | RADIUS RAIL LOGISTICS LLC | | | SCAC4 |
| 6 | RRLC | ROAD AND RAIL TRANSPORT INCORPORATE | | | SCAC4 |
| 7 | RRLD | RITARA LIMITED | | | SCAC3 |
| 8 | RRLE | ROADRUNNER LEDFOOT EXPRESS INC | | | SCAC3 |
| 9 | RRLF | RITTER, R L FUEL INC | | | SCAC4 |
| 10 | RRLG | ROADRUNNER LEASING INC | | | SCAC3 |
| 11 | RRLH | ROLLING RIVER LIVE HAULING INC | | | SCAC4 |
| 12 | RRLI | R & R LIMOUSINE INC | | | SCAC3 |
| 13 | RRLO | R & R LOGGING INC | | | SCAC3 |
| 14 | RRLQ | ROYAL ROSE LOGISTICS INC | | | SCAC4 |
| 15 | RRLR | RAMSEY, RAYMOND LEROY | | | SCAC3 |
| 16 | RRLR | R & R LOGISTICS INC | | | SCAC4 |
| 17 | RRLR | Regiorail SAS | | FR | VKM |
| 18 | RRLS | ROSSITER RELOCATION SERVICES INC | | | SCAC4 |
| 19 | RRLT | ROMRELL TRUCKING INC | | | SCAC3 |
| 20 | RRLT | ROAD RUNNER LOGISTICS INC | | | SCAC4 |
| 21 | RRLU | RABANCO COMPANIES | | | SCAC4 |
| 22 | RRLV | RIVER RUN LOGISITICS | | | SCAC4 |
| 23 | RRLX | Rail Logistics, LC | added 10/2004; 7/2005 | | NAKINA |
| 24 | RRLX | *RAILROAD RESOURCES INC. | | | PWRC |
| 25 | RRLX | +RAIL LOGISTICS, LC | | | PWRC |
| 26 | RRLX | Railroad Resources | | | RSRV |
| 27 | RRLX | RAIL LOGISTICS LC | | | SCAC4 |
| 28 | RRLY | ROBERTSON RACING LLC | | | SCAC4 |
