| 7801 | LTWI | LTW INC | | | SCAC4 |
| 7802 | LTWL | Stanwell Buses Limited (Westlink) | | GB | TRAFFIC |
| 7803 | LTWN | LATTELL, WILLIAM NORMAN | | | SCAC3 |
| 7804 | LTWO | LANE TRUCKING & WAREHOUSE CORP | | | SCAC3 |
| 7805 | LTX | Leo Taxi Aereo, S.A. de C.V. | Callsign: Leo Taxi, | MEX | AVCODES |
| 7806 | LTX | City of Lakeland | 1/1945-1/1946 | | NAKINA |
| 7807 | LTX | Louisville Tank Line | 8/1920 | | NAKINA |
| 7808 | LTX | *LOUISVILLE TANK LINE | | | PWRC |
| 7809 | LTX | *CITY OF LAKELAND | | | PWRC |
| 7810 | LTXB | LACAILLE TRANSIT INC | | | SCAC4 |
| 7811 | LTXC | LON-TEX CORP | | | SCAC3 |
| 7812 | LTXC | LEONS TEXAS CUISINE | | | SCAC4 |
| 7813 | LTXD | LE PLA TAXIDERMY | | | SCAC4 |
| 7814 | LTXE | LITTLE TEX EXPRESS | | | SCAC3 |
| 7815 | LTXF | LIGHTNING TRANSFER XPRESS | | | SCAC4 |
| 7816 | LTXG | LANDS TRANSPORTATION LLC | | | SCAC4 |
| 7817 | LTXH | LTY TRANSPORTATION | | | SCAC4 |
| 7818 | LTXI | LOUTEX INC | | | SCAC3 |
| 7819 | LTXJ | L T L | | | SCAC4 |
| 7820 | LTXK | LARRCO TRANSPORTATION INC | | | SCAC4 |
| 7821 | LTXL | LT TRANSPORT LLC | | | SCAC4 |
| 7822 | LTXN | LINK T | | | SCAC4 |
| 7823 | LTXO | LEESER TX, INC | | | SCAC3 |
| 7824 | LTXO | LEESER TX INC | | | SCAC4 |
| 7825 | LTXP | LIFETIME MOTOR EXPRESS, INC | | | SCAC3 |
| 7826 | LTXP | LIFETIME TRANSPORT LLC | | | SCAC4 |
| 7827 | LTXQ | LINOS TRANSPORT INC | | | SCAC4 |
| 7828 | LTXS | LEON TRANSPORT EXPRESS | | | SCAC4 |
| 7829 | LTXT | LATEX TRANSPORT | | | SCAC3 |
| 7830 | LTXT | LT TRANSPORTATION INC | | | SCAC4 |
| 7831 | LTXV | L T A TRANSPORT LLC | | | SCAC4 |
| 7832 | LTXW | LAUBENSTEIN TRANSPORTATION LLC | | | SCAC4 |
| 7833 | LTY | Liberty Air | Callsign: Skydeck, Ceased operations. | NL | AVCODES |
| 7834 | LTYB | LIBERTY BLUE EXPRESS INC | | | SCAC4 |
| 7835 | LTYK | LEE, TOMMY TRUCKING INC | | | SCAC4 |
| 7836 | LTYL | LES TRANSPORTS YVES LASSELLE INC | | | SCAC4 |
| 7837 | LTYN | LEE TIRE COMPANY INC | | | SCAC4 |
| 7838 | LTYS | L T S | | | SCAC4 |
| 7839 | LTYT | LES TRANSPORTS YVON TURCOTTE LTEE | | | SCAC4 |
| 7840 | LTZ | Lotos Air Ltd. | Callsign: Lotos Air, | BG | AVCODES |
| 7841 | LTZC | LENTZ, J M INC | | | SCAC3 |
| 7842 | LTZQ | LATMAR SHIPPING COMPANY LIMITED | | | SCAC3 |
| 7843 | LTZR | LUTZ, ROBERT L | | | SCAC3 |
| 7844 | LTZT | LIETZ TRANSPORTATION INC | | | SCAC3 |
| 7845 | LU | LTU Lufttransport Unternehmen Süd GmbH Co | ICAO: LTS, Callsign: LTS, Commenced operations in May 1984. Merged into LTU during 1998. | D | AVCODES |
| 7846 | LU | Transportes Aereo, S.A. | IATA Prefix: 972, Name changed to Transporte Aereo S.A. | RCH | AVCODES |
| 7847 | LU | Transporte Aereo S.A. (LAN Express) | ICAO: LXP, Callsign: Lanex, IATA Prefix: 972, Name changed to Transporte Aereo S.A. d/b/a LATAM Airlines Chile. ICAO callasign changed from Lanexpress | RCH | AVCODES |
| 7848 | LU | Sociedad Ecuatoriana de Transportes Aereos | Callsign: Saeta, | EC | AVCODES |
| 7849 | LU | Transporte Aereo S.A. d/b/a LATAM Airlines Chile | ICAO: LXP, Callsign: Lanex, IATA Prefix: 972, Name changed from Transporte Aereo S.A. (LAN Express). ICAO callasign changed from Lanexpress | RCH | AVCODES |
| 7850 | LUA | Lusitania Airways | Callsign: Lusitania, Ceased operations | P | AVCODES |
| 7851 | LUAA | LIBRADO URBANO, ALCIDES (MX-641913) | | | SCAC4 |
| 7852 | LUAC | LUND, ALLEN COMPANY INC | | | SCAC3 |
| 7853 | LUAC | LUND, ALLEN COMPANY INC | | | SCAC4 |
| 7854 | LUAI | LOUISVILLE AIR FREIGHT SERVICE INC | | | SCAC3 |
| 7855 | LUAI | LUKES TRUCKING | | | SCAC4 |
| 7856 | LUAL | LUND, ALLEN COMPANY INC (TRUCKLOAD | | | SCAC4 |
| 7857 | LUAN | LUALLEN TRUCKING COMPANY INC | | | SCAC3 |
| 7858 | LUAN | LUXMAR TANKER LLC | | | SCAC4 |
| 7859 | LUAS | LUCAS, FRED TRUCKING | | | SCAC3 |
| 7860 | LUAT | LOUS AUTO & TRUCK SERVICE | | | SCAC3 |
| 7861 | LUAT | LARGE MARGE TRUCKING INC | | | SCAC4 |
| 7862 | LUB | | City: Lübeck | D | TRAFFIC |
| 7863 | LUBA | LUBAR EQUIPMENT CORP | | | SCAC3 |
| 7864 | LUBC | LUBRICANTS AND FUELS TRANSPORT LLC | | | SCAC4 |
| 7865 | LUBF | LAUBACH FREIGHT AGENCY INC | | | SCAC4 |
| 7866 | LUBI | LUBICK TRUCKING INC | | | SCAC4 |
| 7867 | LUBIN | Przedsiêbiorstwo Komunikacji Samochodowej w Lubinie S.A. | Real: PKS | PL | TRAFFIC |
| 7868 | LUBJ | LOUBET, J P CO | | | SCAC3 |
| 7869 | LUBK | LUCKY TRANSPORT INC | | | SCAC4 |
| 7870 | LUBL | Lublin MPK | City: Lublin | PL | TRAFFIC |
| 7871 | LUBM | LUKIAN GLASS STUDIOS | | | SCAC4 |
| 7872 | LUBO | LUBO LIGHTING INTERNATIONAL INC | | | SCAC4 |
| 7873 | LUBR | LUBICH, ROMAN F | | | SCAC3 |
| 7874 | LUBS | LSI | | | SCAC4 |
| 7875 | LUBT | LUBE TECH | | | SCAC4 |
| 7876 | LUBX | Philip Metals, Inc. | added 4/2001; 7/2005; eliminated 7/2006 | | NAKINA |
| 7877 | LUBX | Luria Brothers, a Division of Connell Limited Partnership | added 1/1997; 7/2000; eliminated 4/2001 | | NAKINA |
| 7878 | LUBX | Cross Development Co. | added 4/1979; 1/1980; eliminated 4/1980 | | NAKINA |
| 7879 | LUBX | Cross Oil & Refining Co. of Arkansas | added 7/1978; eliminated 4/1979 | | NAKINA |
| 7880 | LUBX | Cross Transportation Co. | added 10/1971; 1/1975; eliminated 7/1978 | | NAKINA |
| 7881 | LUBX | Cross Oil & Refining Co. | added 10/1964; 4/1970; eliminated 10/1971 | | NAKINA |
| 7882 | LUBX | Henry H. Co. | eliminated 10/1964 | | NAKINA |
| 7883 | LUBX | Luria Bros. | 10/1957 (not listed) | | NAKINA |
| 7884 | LUBX | Socony-Vacuum Oil Co., Inc., Lubrite Division | 7/1937-4/1947 | | NAKINA |
| 7885 | LUBX | Lubrite Refining Corp. (Socony-Vacuum Oil Co., Inc., Lubrite Division) | 7/1935 | | NAKINA |
| 7886 | LUBX | Lubrite Refining Corp. | 7/1930-7/1932 | | NAKINA |
| 7887 | LUBX | Lubrite Refining Co. | 8/1920-7/1923 | | NAKINA |
| 7888 | LUBX | Lubrite Refining Corp. (Socony-Vacuum Oil Co., Inc., Lubrite Division) | Apr-38 | | NRHS |
| 7889 | LUBX | Luria Bros. | Oct-57 | | NRHS |
| 7890 | LUBX | Cross Oil & Refining Co. | 4/70; eliminated 10/71 | | NRHS |
| 7891 | LUBX | Cross Transportation Co. | added 10/71; 1/75; eliminated 7/78 | | NRHS |
| 7892 | LUBX | Cross Oil & Refining Co. of Arkansas | added 7/78; eliminated 4/79 | | NRHS |
| 7893 | LUBX | Cross Development Co. | added 4/79; 1/80; eliminated 4/80 | | NRHS |
| 7894 | LUBX | Luria Brothers, a Division of Connell Limited Partnership | added 1/97; 7/2000; eliminated 4/2001 | | NRHS |
| 7895 | LUBX | Philip Metals, Inc. | added 4/2001 | | NRHS |
| 7896 | LUBX | *SOCONY-VACUUM OIL CO., LUBRITE DIV. | | | PWRC |
| 7897 | LUBX | *LURIA BROS. DIVISION OF CONNELL LIMITED PARTNERSHIP | | | PWRC |
| 7898 | LUBX | *HENRY H. CO. | | | PWRC |
| 7899 | LUBX | *CROSS DEVELOPMENT CO. (CROSS OIL) | | | PWRC |
| 7900 | LUBX | *PHILIP METALS, INC. | | | PWRC |
