| 4501 | RIIU | RINA SERVICES S.P.A. | | I | BIC |
| 4502 | RIIW | ROMEO INVESTMENTS INC | | | SCAC4 |
| 4503 | RIIX | Reilly Industries, Inc. | added 4/2000; 7/2000-7/2005; eliminated 4/2008 | | NAKINA |
| 4504 | RIIX | Reilly Industries, Inc. | added 4/2000; 7/2000 | | NRHS |
| 4505 | RIIX | REILLY INDUSTRIES, INC. | | | PWRC |
| 4506 | RIIX | Reilly Industries | | | RSRV |
| 4507 | RIJJ | ROBUSTELLI, JOHN J | | | SCAC3 |
| 4508 | RIJL | RICHARDSON, JACK L | | | SCAC3 |
| 4509 | RIJN | RICHER, JOHN TRUCKING | | | SCAC3 |
| 4510 | RIJO | RIDDLES DELIVERY SERVICE | | | SCAC3 |
| 4511 | RIJO | RIVAS MARQUEZ, JOSE SAUL | | | SCAC4 |
| 4512 | RIJU | RIJBATAINER | | | SCAC3 |
| 4513 | RIJW | RIGGINS, J W | | | SCAC3 |
| 4514 | RIK | Eurojet, Compagnie | Callsign: Rikas, | B | AVCODES |
| 4515 | RIKA | RIKA TRUCKING | | | SCAC3 |
| 4516 | RIKC | RICKS CONTAINER SERVICES | | | SCAC3 |
| 4517 | RIKE | RICKETTS TRUCKING | | | SCAC3 |
| 4518 | RIKG | RICHARDS, KENNETH G | | | SCAC3 |
| 4519 | RIKL | RIEMAR-KLINGEL TRUCKING CO | | | SCAC3 |
| 4520 | RIKO | RIGHTWAY EXPRESS CO | | | SCAC3 |
| 4521 | RIKQ | RICKS TRUCKING | | | SCAC3 |
| 4522 | RIKS | RIENKS, ARNOLD JERRY | | | SCAC3 |
| 4523 | RIKS | RIKSHA GOLF INC | | | SCAC4 |
| 4524 | RIKT | RICKETTS TRUCKING INC | | | SCAC3 |
| 4525 | RIKW | RICHARDSON, KEITH | | | SCAC4 |
| 4526 | RIL | Regional Air | | RIM | AVCODES |
| 4527 | RIL | Regional Air | | | ICAO1 |
| 4528 | RILA | REILLY, A V INTERNATIONAL LTD | | | SCAC3 |
| 4529 | RILA | REILLY, A V INTERNATIONAL LTD | | | SCAC4 |
| 4530 | RILC | R8IT LOGISTICS & | | | SCAC4 |
| 4531 | RILD | RILEY, DALE A INC | | | SCAC3 |
| 4532 | RILD | RYDER INTEGRATED LOGISTICS INC (RIL | | | SCAC4 |
| 4533 | RILE | RILEY CARTAGE | | | SCAC3 |
| 4534 | RILEY | Riley and Son (Electromec) Ltd. | | UK | VKM |
| 4535 | RILF | RELLUM INC LLC | | | SCAC4 |
| 4536 | RILG | REGIONAL INTEGRATED LOGISTICS INC | | | SCAC4 |
| 4537 | RILI | RYDER INTEGRATED LOGISTICS INC (RIL | | | SCAC4 |
| 4538 | RILL | RIZE INDUSTRIES LLC | | | SCAC4 |
| 4539 | RILN | RICKERT & LAAN INC | | | SCAC3 |
| 4540 | RILQ | RILL TANKSHIP INC. | | | SCAC3 |
| 4541 | RILR | RYDER INTEGRATED LOGISTICS INC (RIL | | | SCAC4 |
| 4542 | RILS | RICE LINES INC | | | SCAC3 |
| 4543 | RILT | RILEY TRUCKING COMPANY, INCORPORATE | | | SCAC3 |
| 4544 | RILU | RICKMERS-LINEIE GMBH & CIE K | | | SCAC4 |
| 4545 | RILX | Garvey International, Inc., Garvey Grain Division | 7/2000-7/2005; eliminated 1/2008 | | NAKINA |
| 4546 | RILX | Garvey International, Inc. | added 7/1996 | | NAKINA |
| 4547 | RILX | Interail, Inc. | added 7/1980; 1/1994; eliminated 7/1996 | | NAKINA |
| 4548 | RILX | Interail, Inc. | added 7/80; 1/94; eliminated 7/96 | | NRHS |
| 4549 | RILX | Garvey International, Inc. | added 7/96 | | NRHS |
| 4550 | RILX | Garvey International, Inc., Garvey Grain Division | Jul-00 | | NRHS |
| 4551 | RILX | *INTERAIL, INC. | | | PWRC |
| 4552 | RILX | +GARVEY INTERNATIONAL INCORPORATED, GARVEY GRAIN DIVISION | | | PWRC |
| 4553 | RILX | Interail | | | RSRV |
| 4554 | RILX | INTERAIL INC | | | SCAC4 |
| 4555 | RIM | Rimrock Airlines, Inc. | Callsign: Rimrock, | USA | AVCODES |
| 4556 | RIM | Rimrock Airlines | | | ICAO1 |
| 4557 | RIM | Rheinisches Industriebahn Museum e.V | | DE | VKM |
| 4558 | RIMA | RIMAR TRANSPORT | | | SCAC3 |
| 4559 | RIMA | RIMAR TRANSPORT | | | SCAC4 |
| 4560 | RIMC | RICHLOR MACHINERY CO INC | | | SCAC3 |
| 4561 | RIMD | RAIL INTERMODAL TRUCKING LTD | | | SCAC3 |
| 4562 | RIMD | RELIANCE INTERMODAL LLC | | | SCAC4 |
| 4563 | RIME | RIME SALES CORP | | | SCAC4 |
| 4564 | RIMG | RIFFEL MOVING SERVICE INC | | | SCAC3 |
| 4565 | RIMG | RIMAR CHARTERING CORPORATION | | | SCAC4 |
| 4566 | RIMH | RIM LOGISTICS LTD | | | SCAC4 |
| 4567 | RIMI | RIO MARINE INC | | | SCAC3 |
| 4568 | RIML | RIMORCHIATORI | | | SCAC4 |
| 4569 | RIMN | RIECHMANN TRANSPORT INC | | | SCAC3 |
| 4570 | RIMN | RODRIGUEZ MARRUFO, FRANCISCO | | | SCAC4 |
| 4571 | RIMO | REPRESENTACI | | | SCAC4 |
| 4572 | RIMQ | RIED MOTOR EXPRESS | | | SCAC3 |
| 4573 | RIMR | RIEMERS MARINA | | | SCAC3 |
| 4574 | RIMS | GEORGE RIMES TRUCKING CO | | | PWRC |
| 4575 | RIMT | ROCK ISLAND MOTOR TRANSIT CO | | | PWRC |
| 4576 | RIMT | ROLLA IMPLEMENT | | | SCAC4 |
| 4577 | RIMX | Ready Mixed Concrete Co. | 1/1994-7/2005 (not listed) | | NAKINA |
| 4578 | RIMX | Ready Mixed Concrete Co. | 1/94-7/2000 | | NRHS |
| 4579 | RIMX | READY MIXED CONCRETE CO. | | | PWRC |
| 4580 | RIMX | *READY MIXED CONCRETE COMPANY | | | PWRC |
| 4581 | RIMX | +RAIL & MOTOR INTERNATIONAL LTD. | | | PWRC |
| 4582 | RIMX | Ready Mixed Concrete | | | RSRV |
| 4583 | RIMX | RAIL & MOTOR INTERNATIONAL LTD | | | SCAC4 |
| 4584 | RIN | Airline Transport Incorporation | Callsign: Aerotitan, | MD | AVCODES |
| 4585 | RIN | Little Rissington (RAF) | Callsign: Rissington, | GB | AVCODES |
| 4586 | RINA | REAL INDUSTRIES | | | SCAC4 |
| 4587 | RINB | RIFANBURG, C J TRUCKING | | | SCAC3 |
| 4588 | RINB | RAKKASANS INC | | | SCAC4 |
| 4589 | RINC | REITAND, CHARLES | | | SCAC3 |
| 4590 | RINC | ROSTAM INC | | | SCAC4 |
| 4591 | RINCJ | REMATINVEST SRL | | RO | VKM |
| 4592 | RIND | RIEDON INC | | | SCAC4 |
| 4593 | RINE | RIGGING INTERNATIONAL | | | SCAC4 |
| 4594 | RINF | RING, FRANK R TRANSFER INC | | | SCAC3 |
| 4595 | RINF | RING, FRANK R TRANSFER INC | | | SCAC4 |
| 4596 | RING | RINGSBY TRUCK LINES INC | | | PWRC |
| 4597 | RING | RUNNERS INCORPORATED | | | SCAC4 |
| 4598 | RINH | RINEHARTS MEAT PROCESSING INC | | | SCAC3 |
| 4599 | RINH | RINEHARTS MEAT PROCESSING INC | | | SCAC4 |
| 4600 | RINI | RETAYLORS INTERIOR INC | | | SCAC4 |
