| 4601 | LLYR | LLOYD, RUSS | | | SCAC4 |
| 4602 | LLYS | LLOYDS TIRE SERVICE | | | SCAC3 |
| 4603 | LLYT | LALLEY TRUCKING INC | | | SCAC3 |
| 4604 | LLYU | LILY MARINE SERVICES LTD | | | SCAC4 |
| 4605 | LLZY | LARRALDE LOZOYA, JORGE NICOLAS | | | SCAC4 |
| 4606 | LM | ALM 1997 Airline Inc., d/b/a Air ALM | ICAO: ALM, Callsign: Antillean, IATA Prefix: 119, Ceased its operations in 2001. Name changed from ALM 1997 Airlines, Inc. | NA | AVCODES |
| 4607 | LM | Loganair Limited | ICAO: LOG, Callsign: Logan, IATA Prefix: 682, Name changed from Dalglen (No. 647) Limited which was incorporated on 21/11/1996. Formed after management buyout from British Midland Group. | GB | AVCODES |
| 4608 | LM | ALM 1997 Airlines, Inc. | ICAO: ALM, Callsign: Antillean, IATA Prefix: 119, Name changed to ALM 1997 Airline Inc., d/b/a Air ALM. Name changed from ALM 1997 Airlines, Inc. | NA | AVCODES |
| 4609 | LM | Antillean Airlines (ALM) | ICAO: ALM, Callsign: Antillean, IATA Prefix: 119, Name changed to ALM 1997 Airlines, Inc. | NA | AVCODES |
| 4610 | LM | Antilliaanse Luchtvaart Maatschappij | ICAO: ALM, Callsign: Antillean, IATA Prefix: 119, | NA | AVCODES |
| 4611 | LM | Livingston S.p.A. | ICAO: LVG, Callsign: Livingston, Ceased Operations on 14 October 2010. Founded 13 January 2003 | I | AVCODES |
| 4612 | LM | Union Pacific R.R. Co. | added 10/1995; 7/2000-7/2005 | | NAKINA |
| 4613 | LM | Chicago and North Western Ry. Co. | added 1/1995; eliminated 10/1995 | | NAKINA |
| 4614 | LM | Chicago and North Western Transportation Co. | eliminated 1/1995 | | NAKINA |
| 4615 | LM | Litchfield and Madison Ry. Co. (Chicago and North Western Transportation Co.) | 1/1975-1/1994 | | NAKINA |
| 4616 | LM | Litchfield and Madison Ry. Co. (Chicago and North Western Ry. Co.) | 4/1961-10/1966 | | NAKINA |
| 4617 | LM | Litchfield and Madison Ry. Co. (Chicago and North Western Ry. Co.) | 4/61-10/66 | | NRHS |
| 4618 | LM | Litchfield and Madison Ry. Co. (Chicago and North Western Transportation Co.) | 1/75-1/94 | | NRHS |
| 4619 | LM | Chicago and North Western Transportation Co. | eliminated 1/95 | | NRHS |
| 4620 | LM | Chicago and North Western Ry. Co. | added 1/95; eliminated 10/95 | | NRHS |
| 4621 | LM | Union Pacific R.R. Co. | added 10/95; 7/2000 | | NRHS |
| 4622 | LM | UP [CHICAGO & NORTH WESTERN RY. CO.; LITCHFIELD & MADISON RY.] | | | PWRC |
| 4623 | LM | Litchfield and Madison Railway (Union Pacific Railroad) | | | RSRV |
| 4624 | LM | Lokomotion Gesellschaft für Schienentraktion GmbH | | DE | VKM |
| 4625 | LMA | Aerolima, S.A. de C.V. | Callsign: Aerolima, | MEX | AVCODES |
| 4626 | LMA | Aerolima | | | ICAO1 |
| 4627 | LMAB | LAURIN MARITIME AB | | | SCAC3 |
| 4628 | LMAB | LAURIN MARITIME AMERICA INC | | | SCAC4 |
| 4629 | LMAC | LOMA CARTAGE INC | | | SCAC3 |
| 4630 | LMAE | LEMAIRE EXPRESS INC | | | SCAC3 |
| 4631 | LMAF | LTL MANAGEMENT | | | SCAC4 |
| 4632 | LMAI | LAMAR TRANSPORTATION INC | | | SCAC3 |
| 4633 | LMAI | LAMAR TRANSPORTATION INC | | | SCAC4 |
| 4634 | LMAK | LOMA TRUCKING CO LLC | | | SCAC4 |
| 4635 | LMAP | LEMAR TRANSPORTATION | | | SCAC3 |
| 4636 | LMAQ | LAMANNA, SAM MOVING AND STORAGE | | | SCAC3 |
| 4637 | LMAR | LA-MAR TRANSPORTATION INC | | | SCAC3 |
| 4638 | LMAR | LA-MAR TRANSPORTATION INC | | | SCAC4 |
| 4639 | LMAS | LINEAS ASMAR S A | | | SCAC3 |
| 4640 | LMAS | LOPEZ SALAZAR, MARIO ALBERTO | | | SCAC4 |
| 4641 | LMAT | LINAMAR TRANSPORTATION | | | SCAC3 |
| 4642 | LMAT | LINAMAR TRANSPORTATION | | | SCAC4 |
| 4643 | LMAU | LAND MARINE CARGO INC | | | SCAC4 |
| 4644 | LMAW | LEADERS MOVING AND STORAGE | | | SCAC4 |
| 4645 | LMAY | LYKENS MARKET | | | SCAC4 |
| 4646 | LMB | Aviakomi | Callsign: Aviakomi, | GE | AVCODES |
| 4647 | LMBB | LOGISTICS MANAGED BY SITTON LLC | | | SCAC4 |
| 4648 | LMBE | LOPEZ MADRID, BLAS ROBERTO | | | SCAC4 |
| 4649 | LMBF | LAMBIE, FRANK INC | | | SCAC3 |
| 4650 | LMBH | LAMBERT & HOOD | | | SCAC3 |
| 4651 | LMBH | LAMBERT & HOOD | | | SCAC4 |
| 4652 | LMBI | LOMBARDI TRANSPORTATION COMPANY | | | SCAC4 |
| 4653 | LMBK | LUDWIG-MCINTOSH BULK HAULERS INC | | | SCAC3 |
| 4654 | LMBL | LIMBERLOST LTD | | | SCAC4 |
| 4655 | LMBM | LAMOURE BUILDING MATERIALS & SUPPLI | | | SCAC3 |
| 4656 | LMBO | LAWSON MILLS BIOMASS SOLUTIONS LTD | | | SCAC4 |
| 4657 | LMBP | LOMBARDI, P J TRUCKING INC | | | SCAC3 |
| 4658 | LMBQ | LAMBERT TRANSFER CO INC | | | SCAC3 |
| 4659 | LMBR | L M B TRANSPORT INC | | | SCAC4 |
| 4660 | LMBS | LAMBERTS TOURS & TEAVEL | | | SCAC3 |
| 4661 | LMBS | LES MEUBLES VENEZIANO LTD | | | SCAC4 |
| 4662 | LMBT | LAMBERT TRANSFER & STORAGE INC | | | SCAC3 |
| 4663 | LMBT | LAMBERT TRANSFER & STORAGE INC | | | SCAC4 |
| 4664 | LMC | Linea Aerea Mexicana de Carga, S.A. de C.V. | Callsign: Linea Decarga, | MEX | AVCODES |
| 4665 | LMC | Linea Aerea Mexicana de Carga | | | ICAO1 |
| 4666 | LMC | London Midland Trains | | GB | TRAFFIC |
| 4667 | LMCA | L & M CHARTERS LTD | | | SCAC3 |
| 4668 | LMCC | LIMOUSINE COMPANY OF CALGARY LTD | | | SCAC3 |
| 4669 | LMCC | LEGENDARY MOTORCAR COMPANY LTD | | | SCAC4 |
| 4670 | LMCD | L & M CONSOLIDATORS | | | SCAC3 |
| 4671 | LMCE | LIMO CENTER LTD, THE | | | SCAC3 |
| 4672 | LMCF | LANGDON MILLS CANADA INC | | | SCAC4 |
| 4673 | LMCG | LITTLE MISS CHIEF GOURMET PRODUCTS | | | SCAC4 |
| 4674 | LMCH | LAMICELLA, EMILIO | | | SCAC3 |
| 4675 | LMCI | LAND-MARINE CARGO INC | | | SCAC3 |
| 4676 | LMCJ | LANDJET MOTOR CARRIER'S INC | | | SCAC4 |
| 4677 | LMCK | L & M CARRIER | | | SCAC4 |
| 4678 | LMCN | LIMOUSINE CONNECTION | | | SCAC3 |
| 4679 | LMCN | LEA MARC INC | | | SCAC4 |
| 4680 | LMCO | L & M TRANSPORTATION | | | SCAC3 |
| 4681 | LMCQ | L & M CONSOLIDATORS | | | SCAC3 |
| 4682 | LMCR | LAMCRAFT INDUSTRIES INC | | | SCAC3 |
| 4683 | LMCS | LOOMIS COURIER SERVICE LTD | | | SCAC3 |
| 4684 | LMCT | LMC TRANSPORT CO INC | | | SCAC4 |
| 4685 | LMCU | IGNAZIO MESSINA & CO | | I | BIC |
| 4686 | LMCU | *(KWCU) IGNAZIO MESSINA CO SPA | | | PWRC |
| 4687 | LMCU | *WORLD CONTAINER LEASING INCORPORATED | | | PWRC |
| 4688 | LMCU | World Container Leasing | | | RSRV |
| 4689 | LMCU | IGNAZIO MESSINA & CO | | | SCAC4 |
| 4690 | LMCV | LOGISTICS MATERIALS CONTROL (DIVISI | | | SCAC4 |
| 4691 | LMCX | All Minerals Co. | added 7/1983; eliminated 1/1985 | | NAKINA |
| 4692 | LMCX | Lott Materials Co., Inc. | added 10/1981; eliminated 7/1983 | | NAKINA |
| 4693 | LMCX | Lott Materials Co., Inc. | added 10/81 | | NRHS |
| 4694 | LMCX | All Minerals Co. | eliminated 1/85 | | NRHS |
| 4695 | LMCX | ALL MINERALS CORPORATION [LOTT MATERIALS CO., INC.] | | | PWRC |
| 4696 | LMCX | All Minerals Corporation | | | RSRV |
| 4697 | LMCY | LUCAS MARINE COMPANY LTD | | | SCAC3 |
| 4698 | LMCY | LMC EXPRESS LLC | | | SCAC4 |
| 4699 | LMD | Linea Aerea Merida Internacional de Aviacion C.A. (LiMia C.A.) | Callsign: Lamia, | YV | AVCODES |
| 4700 | LMDB | LANDMARK DISTRIBUTION INC | | | SCAC3 |
