| 601 | RAVA | RAVALLI MOTOR FREIGHT | | | SCAC3 |
| 602 | RAVEN | Raven Trading s.r.o. | | CZ | VKM |
| 603 | RAVH | RAPIER-VIEHWEG & ASSOCIATES | | | SCAC3 |
| 604 | RAVI | RAIL VAN DISTRIBUTORS INC | | | SCAC3 |
| 605 | RAVI | RAVELLO INTERNATIONAL LTD | | | SCAC4 |
| 606 | RAVL | RAVEILL, CARROLL | | | SCAC3 |
| 607 | RAVM | RAVINE MUSHROOM (1983) LTD | | | SCAC4 |
| 608 | RAVO | RAVENNA OIL COMPANY | | | SCAC4 |
| 609 | RAVP | RAVENSBERGE | | | SCAC4 |
| 610 | RAVQ | RARITAN VALLEY SHIPPING AGENT | | | SCAC3 |
| 611 | RAVQ | REAVES INC | | | SCAC4 |
| 612 | RAVR | RAVEN RENEWAL COMPANY | | | SCAC3 |
| 613 | RAVT | RAVEN TRANSFER & STORAGE | | | SCAC3 |
| 614 | RAVU | LATAM BOX COLOMBIA SAS | | CO | BIC |
| 615 | RAVU | FLEX BOX LIMITED | | | SCAC4 |
| 616 | RAVX | RAVENA ARSENAL | | | PWRC |
| 617 | RAW | Regional Air Limited | | EAK | AVCODES |
| 618 | RAW | Great Southwest Aviation | Callsign: Hondo, | USA | AVCODES |
| 619 | RAWD | RAYWOOD TRANSPORT INC | | | SCAC4 |
| 620 | RAWH | RAWHIDE CARRIERS INC | | | SCAC3 |
| 621 | RAWJ | RAWLEY, J W | | | SCAC3 |
| 622 | RAWL | RAWLINGS TRUCK LINES INC | | | SCAC3 |
| 623 | RAWL | RAWL, WALTER P & SONS INC | | | SCAC4 |
| 624 | RAWM | RAWLINGS, WADE MORRIS | | | SCAC4 |
| 625 | RAWO | R & W TRUCKING CO INC | | | SCAC3 |
| 626 | RAWO | RINGS AROUND THE WORLD LTD | | | SCAC4 |
| 627 | RAWP | Rechsbahn Ausbesserungswerke Potsdam | | D | TRAFFIC |
| 628 | RAWQ | RAWLS OIL SERVICE | | | SCAC3 |
| 629 | RAWR | RARUS RAILWAY COMPANY | | | PWRC |
| 630 | RAWS | R A | | | SCAC4 |
| 631 | RAWU | QUANZHOU YIYANG CONTAINER SERVICE C | | | SCAC4 |
| 632 | RAWX | Platte River Power Authority | added 4/1984; eliminated 4/1990; 1/1994-7/2005 (not listed) | | NAKINA |
| 633 | RAWX | Riverside Acid & Inhibitor Co. | 1/1943-1/1952; eliminated 7/1953 | | NAKINA |
| 634 | RAWX | Riverside Acid Works | 7/1930-1/1941 | | NAKINA |
| 635 | RAWX | Riverside Acid Works | Apr-38 | | NRHS |
| 636 | RAWX | Riverside Acid & Inhibitor Co. | Jan-52 | | NRHS |
| 637 | RAWX | Platte River Power Authority | added 4/84; eliminated 4/90; 1/94-7/2000 | | NRHS |
| 638 | RAWX | *RIVERSIDE ACID INHIBITOR CO. [RIVERSIDE ACID WORKS] | | | PWRC |
| 639 | RAWX | +PLATTE RIVER POWER AUTHORITY | | | PWRC |
| 640 | RAWX | Platte River Power Authority | | | RSRV |
| 641 | RAWX | PLATTE RIVER POWER AUTHORITY | | | SCAC4 |
| 642 | RAWY | RATHWAY, EDWARD R TRUCKING INC | | | SCAC3 |
| 643 | RAX | Royal Air Freight, Inc. | Callsign: Air Royal, | USA | AVCODES |
| 644 | RAX | Rosenbalm Aviation, Inc | IATA: 9R, Name changed to Flagship Express late 1990. | USA | AVCODES |
| 645 | RAX | Royal Air Freight | | | ICAO1 |
| 646 | RAX | RPI-AAR Cooperative Test Program | 1/1975-1/1980; 1/1994 (not listed); 7/2000-7/2005 (not listed) | | NAKINA |
| 647 | RAX | RPI-AAR Cooperative Test Program | 1/75-7/2000 | | NRHS |
| 648 | RAX | RPI-AAR COOPERATIVE TEST PROGRAM | | | PWRC |
| 649 | RAX | RPI-AAR Cooperative Test Program | | | RSRV |
| 650 | RAXE | ROAD AIR EXPRESS | | | SCAC3 |
| 651 | RAXL | ROBERTS AUTO TRANSPORT LLC | | | SCAC4 |
| 652 | RAXN | ROCCA TRANSPORT SERVICES INC | | | SCAC4 |
| 653 | RAXQ | RAIDERS EXPRESS INC | | | SCAC3 |
| 654 | RAXR | RAY EXPRESS INC | | | SCAC3 |
| 655 | RAXRA | RAXELL RAIL S.A. | | E | TRAFFIC |
| 656 | RAXS | RAYMOND EXPRESS INTERNATIONAL | | | SCAC3 |
| 657 | RAXS | RAYMOND EXPRESS INTERNATIONAL | | | SCAC4 |
| 658 | RAXT | R A TRANSPORT | | | SCAC4 |
| 659 | RAY | Regional Air Services | Callsign: Reas, | CZ | AVCODES |
| 660 | RAY | Royale Airlines, Inc. | Callsign: Ray, ICAO callsign changed to Royale Air | USA | AVCODES |
| 661 | RAY | Royale Airlines, Inc. | Callsign: Royale Air, ICAO callsign changed from Ray | USA | AVCODES |
| 662 | RAY | Real Aeroclub de Navarra | | E | AVCODES |
| 663 | RAYA | RAYAN | | | SCAC4 |
| 664 | RAYC | RAYS TRUCKING | | | SCAC3 |
| 665 | RAYC | RAYO TRANSFER | | | SCAC4 |
| 666 | RAYF | RAY TRANSPORT INC | | | SCAC3 |
| 667 | RAYG | RAY, PAUL TRUCKING | | | SCAC4 |
| 668 | RAYH | RAYMOND, HARVEY | | | SCAC4 |
| 669 | RAYJ | RAY, JOE D | | | SCAC3 |
| 670 | RAYK | RAYTRANS TRUCKING | | | SCAC4 |
| 671 | RAYM | RAY THE MOVER OF MANCHESTER, INC | | | SCAC3 |
| 672 | RAYN | Rayonier Inc. | | USA | TRAFFIC |
| 673 | RAYP | RAY, J D COMPANY | | | SCAC3 |
| 674 | RAYQ | RAY TRUCKING COMPANY INC | | | SCAC3 |
| 675 | RAYQ | RAY-MAC INC | | | SCAC4 |
| 676 | RAYR | RAY TRANSPORT | | | SCAC4 |
| 677 | RAYS | RAYS TRANSFER | | | SCAC3 |
| 678 | RAYT | RAYS TRANSFER | | | SCAC3 |
| 679 | RAYU | KNOW HOW TRADING B.V. | | NL | BIC |
| 680 | RAYV | RAYS MOVERS | | | SCAC3 |
| 681 | RAYV | RAYS MOVERS INC | | | SCAC4 |
| 682 | RAYW | RAYS TRUCKING CO | | | SCAC3 |
| 683 | RAYX | Peck Iron & Metal Co., Inc. | added 7/1961; 7/1965-10/1966; eliminated 10/1967 | | NAKINA |
| 684 | RAYX | Peck Iron & Metal Co., Inc. | 7/65-10/66; eliminated 10/67 | | NRHS |
| 685 | RAYX | PECK IRON & METAL CO., INC. | | | PWRC |
| 686 | RAYX | PECK IRON & METAL CO INC | | | SCAC3 |
| 687 | RAYY | RAYS TRANSFER COMPANY | | | SCAC3 |
| 688 | RAYY | RAYS TRANSFER COMPANY | | | SCAC4 |
| 689 | RAZ | Rijnmond Air Services B.V. | Callsign: Rijnmond, | NL | AVCODES |
| 690 | RAZ | Real Aeroclub Zaragoza | | E | AVCODES |
| 691 | RAZ | Rijnmond Air Services | | | ICAO1 |
| 692 | RAZI | RAZER INC | | | SCAC4 |
| 693 | RAZL | R A Z LINES | | | SCAC3 |
| 694 | RAZO | RAZORBACK MOVING & STORAGE | | | SCAC3 |
| 695 | RAZP | RAZ TRANSPORTATION COMPANY | | | SCAC4 |
| 696 | RAZR | RAZOR EDGE TRUCKING LLC | | | SCAC4 |
