| 5701 | RLTA | RELIABLE TRANSPORT INC | | | SCAC3 |
| 5702 | RLTB | RELIABLE TRUCKING INC | | | SCAC3 |
| 5703 | RLTB | R L TRANSPORTATION | | | SCAC4 |
| 5704 | RLTC | RED LINE TRANSPORT CORP | | | SCAC3 |
| 5705 | RLTC | RED LINE TRANSPORT CORP | | | SCAC4 |
| 5706 | RLTD | REAL TRANSPORT INC | | | SCAC4 |
| 5707 | RLTF | RELIABLE TRANSFER COMPANY | | | SCAC3 |
| 5708 | RLTH | RELIABLE TRANSPORT CORPORATION | | | SCAC3 |
| 5709 | RLTI | RILEY TRUCKING CO | | | SCAC3 |
| 5710 | RLTI | R AND L TRANSPORT INC | | | SCAC4 |
| 5711 | RLTJ | R & L TRUCKING | | | SCAC3 |
| 5712 | RLTJ | R & L TRUCKING CORPORATION | | | SCAC4 |
| 5713 | RLTK | RUSSO, LABER TRUCKING COMPANY INC | | | SCAC3 |
| 5714 | RLTK | RailTrack | | GB | TRAFFIC |
| 5715 | RLTL | RELIABLE TRUCK LINES | | | SCAC3 |
| 5716 | RLTL | RAILTECH LTD | | | SCAC4 |
| 5717 | RLTM | ROARING LION TRANSPORT INC | | | SCAC4 |
| 5718 | RLTN | REL TRUCKING | | | SCAC3 |
| 5719 | RLTN | R & L TRUCKING OF ILLINOIS INC | | | SCAC4 |
| 5720 | RLTO | R&L TRANSPORT | | | SCAC3 |
| 5721 | RLTO | R & L TRANSPORT | | | SCAC4 |
| 5722 | RLTP | REALISTIC TRANSPORT | | | SCAC3 |
| 5723 | RLTP | R L TRANSPORT INC | | | SCAC4 |
| 5724 | RLTQ | ROYALTY TRUCKING INC | | | SCAC3 |
| 5725 | RLTR | R L TRANSPORTATION CO | | | SCAC3 |
| 5726 | RLTR | R & L TRUCKING | | | SCAC4 |
| 5727 | RLTS | REFRIGERATED LTL SERVICE INC | | | SCAC3 |
| 5728 | RLTS | REGIONAL TRANSPORT SERVICE LLC | | | SCAC4 |
| 5729 | RLTT | R L T TRUCKING | | | SCAC3 |
| 5730 | RLTU | RAFFLES LEASE PTE LTD | | SGP | BIC |
| 5731 | RLTV | ROBINSON, L TRANSFER & STORAGE CO I | | | SCAC3 |
| 5732 | RLTW | RELIABLE TRANSPORT INC | | | SCAC3 |
| 5733 | RLTW | RAIL TO RAIL TRANSPORT INC | | | SCAC4 |
| 5734 | RLTX | Randolph L. Johnston | 7/2000 (not listed) | | NAKINA |
| 5735 | RLTX | Randolph L. Johnston | Jul-00 | | NRHS |
| 5736 | RLTX | RANDOLPH L. JOHNSTON | | | PWRC |
| 5737 | RLTX | RANDOLPH L JOHNSON | | | SCAC4 |
| 5738 | RLTY | REALITY TRUCKING LLC | | | SCAC4 |
| 5739 | RLU | Joint Stock Aviation Company "RusLine" | IATA: 7R, Callsign: Rusline Air, | RUS | AVCODES |
| 5740 | RLU | Rusline | | | ICAO1 |
| 5741 | RLUB | ROYALTON LUMBER | | | SCAC4 |
| 5742 | RLUK | R L TRUCKING | | | SCAC3 |
| 5743 | RLUK | R R L TRUCKING INC | | | SCAC4 |
| 5744 | RLUM | ROADLINK TRANSPORTATION SOLUTIONS ( | | | SCAC4 |
| 5745 | RLUP | ROADLINK TRANSPORTATION SOLUTIONS ( | | | SCAC4 |
| 5746 | RLV | Real Aviation Limited | Callsign: Real, | GH | AVCODES |
| 5747 | RLV | Real Aviation | | | ICAO1 |
| 5748 | RLVC | RAHAL LE | | | SCAC4 |
| 5749 | RLVE | R & H TRAVEL INC | | | SCAC3 |
| 5750 | RLVI | RAIL-VAN INC | | | SCAC3 |
| 5751 | RLVL | RALEY VAN LINES INC | | | SCAC3 |
| 5752 | RLVL | R & L VENTURES LTD | | | SCAC4 |
| 5753 | RLVT | R L V TRUCKING | | | SCAC3 |
| 5754 | RLWE | RAILWAY EXPRESS INC | | | SCAC3 |
| 5755 | RLWI | R L T | | | SCAC3 |
| 5756 | RLWI | RL WOOD INC | | | SCAC4 |
| 5757 | RLWL | ROLLING WHEEL TRANSPORT, INC | | | SCAC3 |
| 5758 | RLWL | ROLLING WHEEL TRANSPORT INC | | | SCAC4 |
| 5759 | RLWS | ROYAL WEST TOURS & CRUISES INC | | | SCAC3 |
| 5760 | RLX | Aerolux Air Company, Open Joint Stock Company | Callsign: Aerolux, | UA | AVCODES |
| 5761 | RLX | Go2Sky spol s.r.o. | IATA: 6G, Callsign: Relaxair, | SK | AVCODES |
| 5762 | RLX | Richardson Lubricating Co. | 7/1932 | | NAKINA |
| 5763 | RLX | RICHARDSON LUBRICATING CO. | | | PWRC |
| 5764 | RLX | Go2Sky | | SK | TRAFFIC |
| 5765 | RLXC | RED LINE EXPRESS LLC | | | SCAC4 |
| 5766 | RLXD | RETAIL EXPRESS DELIVERY INC | | | SCAC4 |
| 5767 | RLXE | RAIL EXPRESS INC | | | SCAC3 |
| 5768 | RLXG | RED LINE EXPRESS | | | SCAC3 |
| 5769 | RLXG | RITE LOGISTIX INC | | | SCAC4 |
| 5770 | RLXI | RAIL EXPRESS INC | | | SCAC3 |
| 5771 | RLXL | REAL - TRANS LLC | | | SCAC4 |
| 5772 | RLXP | RELIABLE EXPRESS INC | | | SCAC3 |
| 5773 | RLXR | R & L EXPRESS TRUCKING CORP | | | SCAC3 |
| 5774 | RLXS | RELIABLE EXPRESS | | | SCAC3 |
| 5775 | RLXU | CARU CONTAINERS BV | | NL | BIC |
| 5776 | RLY | Aerolineas Yasi, S.A. de C.V. | Callsign: Yasi, | MEX | AVCODES |
| 5777 | RLY | Air Loyaute | Callsign: Loyaute, | NC | AVCODES |
| 5778 | RLYA | ROSE, LYNN TRUCKING | | | SCAC4 |
| 5779 | RLYB | RILEY BROTHERS | | | SCAC3 |
| 5780 | RLYC | RILEY'S CARDINAL TRANSPORT, INC | | | SCAC3 |
| 5781 | RLYC | RILEYS CARDINAL TRANSPORT INC | | | SCAC4 |
| 5782 | RLYD | REILLY, DON INC | | | SCAC3 |
| 5783 | RLYG | RILEY, GEORGE M TRUCKING CO | | | SCAC3 |
| 5784 | RLYG | RALLY LOGISTICS INC | | | SCAC4 |
| 5785 | RLYI | RILEY TRUCKING SYSTEMS INC | | | SCAC3 |
| 5786 | RLYJ | RILEY, JACK | | | SCAC3 |
| 5787 | RLYK | RILEY, FRANK D TRUCKING | | | SCAC3 |
| 5788 | RLYO | RILEY OIL COMPANY INC | | | SCAC4 |
| 5789 | RLYR | RALLY TRANSPORT | | | SCAC4 |
| 5790 | RLYS | R & L MAY STEAMSHIP AGENCY, INC. | | | SCAC3 |
| 5791 | RLYT | RILEY, FRED TRANSPORT | | | SCAC3 |
| 5792 | RLZ | Air Alize | Callsign: Alize, | NC | AVCODES |
| 5793 | RLZ | Air Alize | | | ICAO1 |
| 5794 | RLZE | ROADLINE 08 | | | SCAC4 |
| 5795 | RLZT | ROJAS, LOPEZ TRUCKING | | | SCAC4 |
| 5796 | RM | Air Moldova International, S.A. | ICAO: MLV, Callsign: Moldova International, IATA Prefix: 283, Designator RM recalled by IATA | MD | AVCODES |
| 5797 | RM | McAlpine Aviation | ICAO: MAL, Callsign: Mcalpine, | GB | AVCODES |
| 5798 | RM | Rotterdamse Luchtvaart Expoeditie Maatschappik | | NL | AVCODES |
| 5799 | RM | Regional Air Ltd | Designator RM* recalled by IATA | EAK | AVCODES |
| 5800 | RM | Aircompany Armenia LLC | ICAO: NGT, Callsign: Nika, | AM | AVCODES |
