| 6401 | LRAK | LARA, HENRY TRUCKING | | | SCAC3 |
| 6402 | LRAQ | LONGFIELD, RANDALL A | | | SCAC4 |
| 6403 | LRAS | L & R ASSOCIATES | | | SCAC3 |
| 6404 | LRAS | LANDGRAFF TREE SERVICE | | | SCAC4 |
| 6405 | LRAX | Latinoamerican Rail Association, Inc. | 1/1994; added 10/1996; 7/2000; eliminated 4/2002 | | NAKINA |
| 6406 | LRAX | Latinoamerican Rail Association, Inc. | 1/94; added 10/96; 7/2000 | | NRHS |
| 6407 | LRAX | LATINOAMERICAN RAIL ASSOCIATION, INC | | | PWRC |
| 6408 | LRAX | Latinoamerican Railroad Association | | | RSRV |
| 6409 | LRB | L R Airlines Ltd. | Callsign: Lady Racine, | CZ | AVCODES |
| 6410 | LRB | L R Airlines | | | ICAO1 |
| 6411 | LRBH | London Retro Bus Hire | | GB | TRAFFIC |
| 6412 | LRBI | LOPEZ RODRIGUEZ, MARTHA I | | | SCAC4 |
| 6413 | LRBQ | LORBACHER, J L | | | SCAC3 |
| 6414 | LRBR | LARSEN BROS | | | SCAC3 |
| 6415 | LRBS | LAKE ENTERPRISES LTD | | | SCAC4 |
| 6416 | LRBT | LARSEN, BART TRUCKING | | | SCAC3 |
| 6417 | LRBT | LITTLE RABBIT TRUCKING | | | SCAC4 |
| 6418 | LRC | Lineas Aereas Costarricenses S.A. (LACSA) | IATA: LR, Callsign: LACSA, IATA Prefix: 133, Name changed to Avianca Costa Rica | CR | AVCODES |
| 6419 | LRC | Avianca Costa Rica S.A. | IATA: LR, Callsign: LACSA, IATA Prefix: 133, Name changed from Lineas Aereas Costarricenses S.A. (LACSA) | CR | AVCODES |
| 6420 | LRC | LACSA | IATA: LR | | ICAO1 |
| 6421 | LRCB | LITTLE ROCK CRATE & BASKET CO | | | SCAC4 |
| 6422 | LRCC | LRC INTERNATIONAL | | | SCAC4 |
| 6423 | LRCD | LARIMER, CHARLES D | | | SCAC3 |
| 6424 | LRCE | LA REPUBLICA CARGO EXPRESS CORP | | | SCAC4 |
| 6425 | LRCH | L R CHARTER SERVICE (A DIV OF UNITE | | | SCAC3 |
| 6426 | LRCI | LEDREW, R CO INC | | | SCAC3 |
| 6427 | LRCI | LUTES, RICHARD CEDAR INC | | | SCAC4 |
| 6428 | LRCK | LARICKS TOWING INC | | | SCAC4 |
| 6429 | LRCM | LIGHT RIGGING CO | | | SCAC3 |
| 6430 | LRCO | LAKE COUNTRY TRANSPORT INC | | | SCAC4 |
| 6431 | LRCQ | LRC TRUCKING INC | | | SCAC4 |
| 6432 | LRCR | LARSEN, CURTIS L | | | SCAC4 |
| 6433 | LRCT | L R C TRUCK LINE | | | SCAC3 |
| 6434 | LRCX | Livingston Rebuild Center, Inc. | 1/1994 (not listed); added 1/1997; 7/2000; eliminated 7/2001; 7/2005 (not listed) | | NAKINA |
| 6435 | LRCX | Lesh Refining Corp. | 8/1920 | | NAKINA |
| 6436 | LRCX | Livingston Rebuild Center, Inc. | 1/94; added 1/97; 7/2000; eliminated 7/2001 | | NRHS |
| 6437 | LRCX | *LESH REFINING CORP. | | | PWRC |
| 6438 | LRCX | +LIVINGSTON REBUILD CENTER, INC. | | | PWRC |
| 6439 | LRCX | Livingston Rebuild Center | | | RSRV |
| 6440 | LRCX | LIVINGSTON REBUILD CENTER, INC. | | | SCAC4 |
| 6441 | LRD | Laredo Air | Callsign: Laredo Air, | USA | AVCODES |
| 6442 | LRD | Laredo Air | | | ICAO1 |
| 6443 | LRDA | LORDCO PARTS LTD | | | SCAC4 |
| 6444 | LRDB | LAREDO TRANSPORT & STORAGE INC | | | SCAC4 |
| 6445 | LRDC | LIGHTHOUSE R & D ENTERPRISES INC | | | SCAC4 |
| 6446 | LRDH | LAREDO HARDWARE COMPANY | | | SCAC4 |
| 6447 | LRDI | L & R DISTRIBUTION INC | | | SCAC3 |
| 6448 | LRDI | LEGACY RACING OF DELAWARE INC | | | SCAC4 |
| 6449 | LRDM | LA ROSA DEL MONTE EXPRESS INC | | | SCAC3 |
| 6450 | LRDM | LA ROSA DEL MONTE EXPRESS INC | | | SCAC4 |
| 6451 | LRDN | LORDON INC | | | SCAC3 |
| 6452 | LRDN | L R D INCORPORATION | | | SCAC4 |
| 6453 | LRDQ | LORRYS DELIVERY SERVICE | | | SCAC3 |
| 6454 | LRDV | LEONARDS TRANSPORTATION INC (REFRIG | | | SCAC4 |
| 6455 | LRDW | LARSEN, D W INTERMODAL INC | | | SCAC4 |
| 6456 | LRDX | MidAmerican Energy Co. | added 4/1996; 7/2000-7/2005 | | NAKINA |
| 6457 | LRDX | Le Ray Despatch Lines, Inc. | 8/1920 | | NAKINA |
| 6458 | LRDX | MidAmerican Energy Co. | added 4/96; 7/2000 | | NRHS |
| 6459 | LRDX | *LE RAY DESPATCH LINES, INC. | | | PWRC |
| 6460 | LRDX | +MIDAMERICAN ENERGY COMPANY | | | PWRC |
| 6461 | LRDX | MidAmerican Energy | | | RSRV |
| 6462 | LRDX | MIDAMERICAN ENERGY COMPANY | | | SCAC4 |
| 6463 | LRE | Lasare Airline | Callsign: Aero Lasare, | GE | AVCODES |
| 6464 | LREA | LORELLA SHIPPING COMPANY | | | SCAC3 |
| 6465 | LREC | LAND AIR EXPRESS INC | | | SCAC3 |
| 6466 | LREC | LAND AIR EXPRESS INC | | | SCAC4 |
| 6467 | LREI | LITTLE ROCK EXPRESS INC | | | SCAC4 |
| 6468 | LReJ | Lund - Revinge Järnväg | 1905 - 1918 | S | svenska-lok.se |
| 6469 | LREK | LEE, ROBERT E TRUCKING | | | SCAC4 |
| 6470 | LREL | LAUREL PIPE LINE COMPANY (INC UNDER | | | SCAC3 |
| 6471 | LREM | LUXE RENTALS | | | SCAC4 |
| 6472 | LREN | LARSEN EQUIPMENT COMPANY | | | SCAC3 |
| 6473 | LREQ | LaROSE TRANSPORT, INC | | | SCAC3 |
| 6474 | LRER | LONG RUN EXPRESS LLC | | | SCAC4 |
| 6475 | LREX | Lewis Railway Equipment Co. (Liquids Despatch Line) | 8/1920-7/1923 | | NAKINA |
| 6476 | LREX | LEWIS RAILROAD EQUIPMENT CO. (LIQUIDS DESPATCH LINE) | | | PWRC |
| 6477 | LRFD | LANTER COMPANY | | | SCAC3 |
| 6478 | LRFD | LANTER DISTRIBUTING | | | SCAC4 |
| 6479 | LRFT | LINDEN REFRIGERATED TRANSPORT | | | SCAC3 |
| 6480 | LRG | Soluciones Aereas de la Laguna, S.A. de C.V. | Callsign: Solaer Laguna, | MEX | AVCODES |
| 6481 | LRGB | LANDSTAR RANGER INC (BROKERAGE DIVI | | | SCAC4 |
| 6482 | LRGN | LARGENT CARRIERS INC | | | SCAC3 |
| 6483 | LRGO | LAKE REGION TRANSPORT INC | | | SCAC3 |
| 6484 | LRGO | LAKE REGION TRANSPORT INC | | | SCAC4 |
| 6485 | LRGP | L R G TRANSPORTATION & STORAGE CO I | | | SCAC4 |
| 6486 | LRGR | LANDSTAR RANGER, INC | | | SCAC1 |
| 6487 | LRGR | LANDSTAR RANGER INC | | | SCAC4 |
| 6488 | LRHD | LANTING, R J HAY DEALER INC | | | SCAC3 |
| 6489 | LRHI | LOGANS RUN HAULING INC | | | SCAC4 |
| 6490 | LRHQ | LANE, RICHARD | | | SCAC3 |
| 6491 | LRHS | L R H | | | SCAC3 |
| 6492 | LRHT | LEHMAN, RICHARD TRANSPORTATION | | | SCAC3 |
| 6493 | LRHT | LOGISTICS & TRANSPORTATION SERVICES | | | SCAC4 |
| 6494 | LRIB | LEWIS & ROBEY INC | | | SCAC4 |
| 6495 | LRID | LARIAT DISTRIBUTING | | | SCAC3 |
| 6496 | LRID | LINNS SERVICE | | | SCAC4 |
| 6497 | LRIG | LONGS RENTAL INC | | | SCAC4 |
| 6498 | LRIL | LARKIN INDUSTRIAL LIMITED | | | SCAC3 |
| 6499 | LRIN | LAURIN EXPRESS LTEE | | | SCAC4 |
| 6500 | LRIO | LERIO CORPORATION, THE | | | SCAC3 |
