| 1 | RLI | R Lines, S.A. | Callsign: Anjou, | F | AVCODES |
| 2 | RLI | Reliant Air Charter, Inc. | IATA: L0, Callsign: Reliant, Designator L0 recalled by IATA. | USA | AVCODES |
| 3 | RLI | Reliant Air Charter, Inc. | Callsign: Reliant, Designator L0 recalled by IATA. | USA | AVCODES |
| 4 | RLIB | RELIABLE TRANSPORTATION | | | SCAC3 |
| 5 | RLIB | REA LOGISTICS INC | | | SCAC4 |
| 6 | RLIC | RELIANCE LOGISTICS INC | | | SCAC4 |
| 7 | RLID | RED LEAF INTERNATIONAL INC | | | SCAC4 |
| 8 | RLIE | R.L.E. EXPRESS, INC | | | SCAC3 |
| 9 | RLIE | ROCHI LOGISTICS INC | | | SCAC4 |
| 10 | RLIF | ROWE LOGISTICS INC | | | SCAC4 |
| 11 | RLIJ | RELIANCE LOGISTICS INC | | | SCAC4 |
| 12 | RLIM | RAILPORT LOGISTICS INC | | | SCAC4 |
| 13 | RLIN | REAL INDUSTRIES USA | | | SCAC4 |
| 14 | RLIO | RICH LINK INTL LOGISTICS SERVICE (S | | | SCAC4 |
| 15 | RLIP | ROOSTER LIPS COMPANY INC | | | SCAC4 |
| 16 | RLIQ | RPM LOGISTICS INC | | | SCAC4 |
| 17 | RLIS | ROYAL LIMOUSINE SERVICE INC | | | SCAC3 |
| 18 | RLIS | RODVAL LOGISTIC INC | | | SCAC4 |
| 19 | RLIS | Rodoviária de Lisboa | | P | TRAFFIC |
| 20 | RLIT | RED LINE TRUCK LINE | | | SCAC3 |
| 21 | RLIW | RUGGED LINER INC | | | SCAC4 |
| 22 | RLIX | Rail Link Inc. | 7/2000-7/2005 (not listed) | | NAKINA |
| 23 | RLIX | Rail Link Inc. | Jul-00 | | NRHS |
| 24 | RLIX | RAIL LINK, INC. | | | PWRC |
| 25 | RLIX | Rail Link | | | RSRV |
| 26 | RLIX | RAIL LINK, INC. | | | SCAC4 |
| 27 | RLIX | Rail Link | | USA | TRAFFIC |
| 28 | RLIY | ROSEN LOGISTICS INC | | | SCAC4 |
