| 4701 | RISF | RIST TRANSPORT LTD | | | SCAC3 |
| 4702 | RISF | RIST TRANSPORT LTD | | | SCAC4 |
| 4703 | RISH | RISH-POLL INC | | | SCAC3 |
| 4704 | RISI | RISS TRANSPORTATION COMPANY | | | SCAC3 |
| 4705 | RISI | RISINGER BROS TRANSFER INC (DEDICAT | | | SCAC4 |
| 4706 | RISL | RHODE ISLAND TOWING | | | SCAC3 |
| 4707 | RISM | R I S EXPRESS | | | SCAC3 |
| 4708 | RISM | RISTOW TRUCKING INC (TRUCKLOAD DIVI | | | SCAC4 |
| 4709 | RISN | RISINGER BROS TRANSFER INC | | | SCAC3 |
| 4710 | RISN | RISINGER BROS TRANSFER INC | | | SCAC4 |
| 4711 | RISO | RILEY & SON TRUCKING | | | SCAC3 |
| 4712 | RISQ | RIISER TRANSPORT INC | | | SCAC3 |
| 4713 | RISR | RISCHITELLI BROTHERS INC | | | SCAC3 |
| 4714 | RISS | RISS AND CO INC | | | PWRC |
| 4715 | RISS | | | D | TRAFFIC |
| 4716 | RIST | RISTOW TRUCKING INC | | | SCAC4 |
| 4717 | RISV | RAIMAR SERVICES INC | | | SCAC3 |
| 4718 | RISV | RELIABLE INTERMODAL SERVICES LLC | | | SCAC4 |
| 4719 | RISW | RIVERSIDE WASTE PAPER CORP | | | SCAC3 |
| 4720 | RISX | Republic Steel Corp. | 7/1932 | | NAKINA |
| 4721 | RISX | Republic Iron & Steel Co. | 7/1930 | | NAKINA |
| 4722 | RISX | REPUBLIC STEEL CORP. [REPUBLIC IRON & STEEL CO.] | | | PWRC |
| 4723 | RISZ | RILEY SPUR | | | PWRC |
| 4724 | RISZ | JDSB REFRIGERATED INTERMODAL SERVIC | | | SCAC4 |
| 4725 | RIT | Asian Spirit, Inc. | IATA: 6K, Callsign: Asian Spirit, Established in 1995. Commenced operations in April 1996. Name changed to Zest Airways w.e.f. 30 September 2008. Designator 6K reinstated by IATA | RP | AVCODES |
| 4726 | RIT | Asian Spirit | IATA: 6K | | ICAO1 |
| 4727 | RITA | RICHARDS TANK TRUCK SERVICE | | | SCAC3 |
| 4728 | RITAL | Rail Italia S.r.l. | | IT | VKM |
| 4729 | RITB | RICE TRANSPORT INC | | | SCAC3 |
| 4730 | RITB | Riggenthalerbahn | | FAN | TRAFFIC |
| 4731 | RITD | RODEWAY INTERNATIONAL TRADING LTD | | | SCAC3 |
| 4732 | RITD | RITCHIE DISTRIBUTING COMPANY | | | SCAC4 |
| 4733 | RITE | RITEWAY EXPRESS, INC | | | SCAC3 |
| 4734 | RITF | RISS TRANSPORT | | | SCAC3 |
| 4735 | RITG | RINGER TRUCKING | | | SCAC3 |
| 4736 | RITH | RITE TRANSPORTTION CO | | | SCAC3 |
| 4737 | RITI | ROBIN INTERNATIONAL TRANSPORT INC | | | SCAC4 |
| 4738 | RITM | RICHARD THE MOVER | | | SCAC3 |
| 4739 | RITM | RIGHT TIME TRUCKING INC | | | SCAC4 |
| 4740 | RITO | RITTER FOOD CORP | | | SCAC3 |
| 4741 | RITP | RICCI TRANSPORTATION CO INC | | | SCAC3 |
| 4742 | RITQ | RITTER OIL COMPANY | | | SCAC4 |
| 4743 | RITR | RIOLO TRANSPORTATION INC | | | SCAC4 |
| 4744 | RITS | ROCK ISLAND TRANSFER AND STORAGE CO | | | SCAC3 |
| 4745 | RITT | RITTER TRUCK LINE, INC | | | SCAC3 |
| 4746 | RITT | RITTERMAN TRUCKING LLC | | | SCAC4 |
| 4747 | RITW | RTC | | | SCAC4 |
| 4748 | RITY | R I T | | | SCAC3 |
| 4749 | RITY | RIT TRUCKING INC | | | SCAC4 |
| 4750 | RIU | PT. Riau Airlines | Callsign: Riau Air, | RI | AVCODES |
| 4751 | RIU | Riau Airlines | | | ICAO1 |
| 4752 | RIUK | RICH, RON TRUCK LEASING INC | | | SCAC4 |
| 4753 | RIV | Air Vip | Callsign: Astana, | KZ | AVCODES |
| 4754 | RIV | APG Airlines | IATA: GP, Callsign: Riviera, | F | AVCODES |
| 4755 | RIVA | RIVER TRANSPORT INC | | | SCAC3 |
| 4756 | RIVD | RIVERSIDE DISTRIBUTORS INC | | | SCAC3 |
| 4757 | RIVD | Riverdale Transit | | US-NY | TRAFFIC |
| 4758 | RIVG | RIVERSIDE TRUCKING COMPANY INC | | | SCAC3 |
| 4759 | RIVI | RIVERSIDE TRANSPORTATION CO INC | | | SCAC3 |
| 4760 | RIVI | Riviera Trains Ltd | Riviera Trains is a railway spot-hire company, based at Crewe in Cheshire. It owns a small fleet of Class 47 locomotives and coaching stock, were are hired to both passenger and charter train operators. | GB | TRAFFIC |
| 4761 | RIVL | RIVER PARISHES OIL CO INC | | | SCAC4 |
| 4762 | RIVN | RIVSEC WASTE PAPER CO INC | | | SCAC3 |
| 4763 | RIVO | RIVIOTTAS CARTAGE INC | | | SCAC3 |
| 4764 | RIVO | RIVERO TRANSPORT | | | SCAC4 |
| 4765 | RIVP | RIVER TERMINALS TRANSPORT INC | | | SCAC3 |
| 4766 | RIVP | RIVERA TRANSPORTATION | | | SCAC4 |
| 4767 | RIVQ | RIVER TRANSFER CORPORATION | | | SCAC3 |
| 4768 | RIVT | RIVEROS TRUCKING | | | SCAC4 |
| 4769 | RIVU | RIVOIRA OPERATIONS | | I | BIC |
| 4770 | RIVU | FINANCE & TRADE SERVICES B.V. | | | SCAC3 |
| 4771 | RIVV | RIVERA, LOUIS | | | SCAC3 |
| 4772 | RIVW | RIVERTOWN WINDOWS MANUFACTURING | | | SCAC4 |
| 4773 | RIWE | RICHARDSON, W E | | | SCAC3 |
| 4774 | RIWJ | RILEY, WILLIAM JAMES | | | SCAC3 |
| 4775 | RIWL | RITEWAY EXPRESS LIMITED | | | SCAC3 |
| 4776 | RIWR | RITE WAY TRUCK RENTAL | | | SCAC3 |
| 4777 | RIWR | RITE WAY TRUCK RENTAL INC | | | SCAC4 |
| 4778 | RIWS | RITE-WAY TRANSPORTATION SYSTEMS | | | SCAC3 |
| 4779 | RIWT | RITEWAY TRANSPORTATION | | | SCAC3 |
| 4780 | RIWY | RIGHT-WAY TRANSPORT INC | | | SCAC3 |
| 4781 | RIX | Rectrix Aviation, Inc. | Callsign: Rectrix, | USA | AVCODES |
| 4782 | RIX | Robinson & Ice | 8/1920-7/1923 | | NAKINA |
| 4783 | RIX | ROBINSON & ICE | | | PWRC |
| 4784 | RIXI | RIGIONAL IMPORT & EXPORT TRUCKING C | | | SCAC3 |
| 4785 | RIXO | RIO EXPRESS CORP | | | SCAC4 |
| 4786 | RIXP | RICCIS EXPRESS | | | SCAC3 |
| 4787 | RIXP | RITAS XPRESS INC | | | SCAC4 |
| 4788 | RIXQ | RIVERSIDE EXPRESS | | | SCAC3 |
| 4789 | RIXR | R & I EXPRESS | | | SCAC4 |
| 4790 | RIXU | TRITICANTHA LOGISTIC LIMITED | | | SCAC4 |
| 4791 | RIXW | RIXWAY EXPRESS INC | | | SCAC3 |
| 4792 | RIY | The Royal Commission for Riyadh City | Real: RCRC, City: Riyadh | SA | TRAFFIC |
| 4793 | RIYU | R.I.C.U. ROMAGNOLA INVESTIMENTI | | | SCAC3 |
| 4794 | RIZO | RIZZO BROS MOVERS INC | | | SCAC3 |
| 4795 | RIZT | RIZZO TRUCKING INC | | | SCAC3 |
| 4796 | RIZZ | RIZZOLI-CATTANEO TRUCKING | | | SCAC3 |
| 4797 | RJ | Royal Jordanian Airlines Company | Callsign: Alia, IATA Prefix: 512, | JOR | AVCODES |
| 4798 | RJ | Bad Orber Bimmelbahn | | D | TRAFFIC |
| 4799 | RJ | RegioJet, a.s. | | CZ | VKM |
| 4800 | RJA | Royal Jordanian | IATA: RJ | | ICAO1 |
