| 8101 | LUTA | LAUGHLIN TRANSPORT INC | | | SCAC3 |
| 8102 | LUTB | LEHIGH UNIVERSITY TRANSPORTATION SE | | | SCAC3 |
| 8103 | LUTC | LUCIO TRUCKING CO | | | SCAC3 |
| 8104 | LUTD | Luton & District / The Shire | Real: LDT, Luton & District in May 1990 bought the Stevenage depot and operations of Sovereign Bus and Coach (ex LCNE), and in October they bought London Country North-West, which had previously been bought by its management. In April 1995 the company was rebranded as "The Shires", with a new blue and yellow livery and local area operating titles. Cowie Group took over in June 1996, and renamed Arriva in November 1997 | GB | TRAFFIC |
| 8105 | LUTE | LUTREL TRUCKING INC | | | SCAC3 |
| 8106 | LUTF | LUTHER TRANSFER & WHSE | | | SCAC3 |
| 8107 | LUTG | LUMBER TRUCKING SERVICE | | | SCAC3 |
| 8108 | LUTH | LUTHER TRANSFER, INC | | | SCAC3 |
| 8109 | LUTI | LUND TRUCKING CO INC | | | SCAC4 |
| 8110 | LUTK | LUNDELL TRUCKING | | | SCAC3 |
| 8111 | LUTM | LUTHER MCGILL INCORPORATED | | | SCAC3 |
| 8112 | LUTO | LUTTOF CAR RENTAL | | | SCAC3 |
| 8113 | LUTR | LIBERIAN ULYSSES TRANSPORTS, INC. | | | SCAC3 |
| 8114 | LUTRA | LUTRA GMBH- Mittelbrandenburgische Hafengesellschaft | | DE | VKM |
| 8115 | LUTSK | ATP 10701 Lutsk | City: Lutsk | UA | TRAFFIC |
| 8116 | LUTSKE | Lutsk company of electric transport | | UA | TRAFFIC |
| 8117 | LUTT | LUTTERODT, Gleis- und Tiefbau | | DE | VKM |
| 8118 | LUTV | LUCAS TRANSPORT | | | SCAC3 |
| 8119 | LUTZ | Gebr. Lutz Bauunternehmung GmbH & Co. KG | | DE | VKM |
| 8120 | LUUX | Lux International Corp. | 7/2005 (not listed) | | NAKINA |
| 8121 | LUUX | LUX INTERNATIONAL CORPORATION | | | PWRC |
| 8122 | LUUX | Lux International Corporation | | | RSRV |
| 8123 | LUV | Luxembourg Air Rescue A.S.B.L. | Callsign: Lux Rescue, | L | AVCODES |
| 8124 | LUV | Air Singhara Co. Ltd. | Callsign: Airsing, | T | AVCODES |
| 8125 | LUV | M Jets International Sdn Bhd t/a Love Fly | IATA: WW, Callsign: Lovejet, Name changed to M Jets International Sdn Bhd t/a Kargo Xpress. | MAL | AVCODES |
| 8126 | LUV | Luxembourg Air Rescue | | | ICAO1 |
| 8127 | LUVI | LUVINBEDDERS TRUCKING LLC | | | SCAC4 |
| 8128 | LUVM | LUV MESSENGER & DELIVERY SERVICE | | | SCAC3 |
| 8129 | LUW | Laeger & Wöstenhöfer GmbH & Co. KG | | DE | VKM |
| 8130 | LUWF | LAKE UNION WHOLESALE FLORIST LLC | | | SCAC4 |
| 8131 | LUWS | LUBBOCK WRECKER SERVICE | | | SCAC3 |
| 8132 | LUWT | LUDWIG TRUCK LINE INC | | | SCAC3 |
| 8133 | LUX | Lincoln Airlines, Inc. | Callsign: Freebird, | USA | AVCODES |
| 8134 | LUX | Lion Oil Co. | eliminated 4/1979 | | NAKINA |
| 8135 | LUX | Tosco Corp. | added 4/1979; 1/1980; eliminated 1/1983; 1/1994-7/2005 (not listed) | | NAKINA |
| 8136 | LUX | Lion Oil Co., Subsidiary of Tosco Corp. | added 1/1977 | | NAKINA |
| 8137 | LUX | Lion Oil Co., Subsidiary of the Oil Shale Corp. | eliminated 1/1977 | | NAKINA |
| 8138 | LUX | Lion Oil Co. | added 10/1972; 1/1975 | | NAKINA |
| 8139 | LUX | Lion Oil Co., Hydrocarbons and Polymers Division, Monsanto Co. | added 10/1965; 10/1966-4/1970; eliminated 10/1972 | | NAKINA |
| 8140 | LUX | Lion Oil Co., Hydrocarbons Division of Monsanto Co. | added 7/1964; 7/1965; eliminated 10/1965 | | NAKINA |
| 8141 | LUX | Lion Oil Co., Hydrocarbons Division of Monsanto Chemical Co. | added 4/1962; eliminated 7/1964 | | NAKINA |
| 8142 | LUX | Lion Oil Co., a Division of Monsanto Chemical Co. | added 1/1956; 10/1957-4/1961; eliminated 4/1962 | | NAKINA |
| 8143 | LUX | Lion Oil Co. | 1/1946-7/1954; eliminated 1/1956 | | NAKINA |
| 8144 | LUX | Lion Oil Refining Co. | 7/1930-1/1945 | | NAKINA |
| 8145 | LUX | Lion Oil & Refining Co. | 7/1923 | | NAKINA |
| 8146 | LUX | Lion Oil Refining Co. | Apr-38 | | NRHS |
| 8147 | LUX | Lion Oil Co. | Jan-52 | | NRHS |
| 8148 | LUX | Lion Oil Co., a Division of Monsanto Chemical Co. | 10/57-4/61; eliminated 4/62 | | NRHS |
| 8149 | LUX | Lion Oil Co., Hydrocarbons Division of Monsanto Chemical Co. | added 4/62; eliminated 7/64 | | NRHS |
| 8150 | LUX | Lion Oil Co., Hydrocarbons Division of Monsanto Co. | added 7/64; 7/65; eliminated 10/65 | | NRHS |
| 8151 | LUX | Lion Oil Co., Hydrocarbons and Polymers Division, Monsanto Co. | added 10/65; 10/66-4/70; eliminated 10/72 | | NRHS |
| 8152 | LUX | Lion Oil Co. | added 10/72; 1/75 | | NRHS |
| 8153 | LUX | Lion Oil Co., Subsidiary of the Oil Shale Corp. | eliminated 1/77 | | NRHS |
| 8154 | LUX | Lion Oil Co., Subsidiary of Tosco Corp. | added 1/77 | | NRHS |
| 8155 | LUX | Lion Oil Co. | eliminated 4/79 | | NRHS |
| 8156 | LUX | Tosco Corp. | added 4/79; 1/80; eliminated 1/83; 1/94-7/2000 | | NRHS |
| 8157 | LUX | *LION OIL DIV MONSANTO CO. | | | PWRC |
| 8158 | LUX | +TOSCO CORP. | | | PWRC |
| 8159 | LUX | Tosco Corporation | | | RSRV |
| 8160 | LUXA | LUX ART VANS SERVICE INC | | | SCAC3 |
| 8161 | LUXA | LUMAX, CAROLYN & LYLE | | | SCAC4 |
| 8162 | LUXE | LUBENOW EXPRESS LLC | | | SCAC4 |
| 8163 | LUXL | LUXURY LIMOUSINE LTD | | | SCAC3 |
| 8164 | LUXR | LUXURY DELIVERY SERVICE INC | | | SCAC4 |
| 8165 | LUXT | LUX, J F TRANS CO, INC | | | SCAC3 |
| 8166 | LUXY | LUXURY TRAVEL INC | | | SCAC3 |
| 8167 | LUYT | LUCKY TRANSPORT | | | SCAC4 |
| 8168 | LUZ | Luzair Transportes Aereos, S.A. | Callsign: Lisbonjet, Founded 1997. Suspended operations in January 2011. | P | AVCODES |
| 8169 | LUZ | Luzair | | | ICAO1 |
| 8170 | LUZA | LINEAS UNIDAS ZACATECANAS S A DE C | | | SCAC4 |
| 8171 | LUZE | LUTZ ENTERPRISES | | | SCAC3 |
| 8172 | LUZM | LUIZ MILK TRANSPORTATION INC | | | SCAC3 |
| 8173 | LUZQ | LAUTZ, FRED & SONS TRUCKING | | | SCAC3 |
| 8174 | LUZT | LUTZ TRUCKING INC | | | SCAC3 |
| 8175 | LUZZ | LUZENAC | | | PWRC |
| 8176 | LV | Albanian Airlines MAK S.H.P.K. | ICAO: LBC, Callsign: Albanian, IATA Prefix: 639, Licence revoked by CAA on 11 November 2011. | AL | AVCODES |
| 8177 | LV | Aeropostal de Venezuela, C.A. | ICAO: ALV, Callsign: Aeropostal, | YV | AVCODES |
| 8178 | LV | Mega Global Air Services (Maldives) Pvt. Ltd. t/a MEGA Maldives Airlines | ICAO: MEG, Callsign: Sandbar, IATA Prefix: 400, Founded on 23 February 2010. AOC granted on 22 December 2010. Commenced operations on 23 December 2010. Ceased operations on 02 May 2017. IATA Designator changed from 5M | MV | AVCODES |
| 8179 | LV | OpenSkies SASU | ICAO: BOS, Callsign: Mistral, IATA Prefix: 284, Name changhed to OpenSkies SASU c.o.b. as LEVEL. IATA code changed from EC | F | AVCODES |
| 8180 | LV | OpenSkies SASU c.o.b. as LEVEL | ICAO: BOS, Callsign: Mistral, IATA Prefix: 284, Ceased operations on 08 July 2020. Name changed from OpenSkies SASU. IATA code changed from EC | F | AVCODES |
| 8181 | LV | Elevate Jet, LLC | ICAO: LVT, Callsign: Elevate, IATA designator LV* recalled. | USA | AVCODES |
| 8182 | LV | Airzena LLC d/b/a Aircompany AIRZENA | ICAO: DTG, Callsign: Zena, | GE | AVCODES |
| 8183 | LV | Norfolk Southern Ry. Co. (Norfolk Southern) | 7/2000-7/2005 | | NAKINA |
| 8184 | LV | Consolidated Rail Corp. | added 4/1976; 1/1980-1/1994; eliminated 7/1999 | | NAKINA |
| 8185 | LV | Lehigh Valley R.R. Co. (Robert C. Haldeman, Trustee) | eliminated 4/1976 | | NAKINA |
| 8186 | LV | Lehigh Valley R.R. (Co.) | 8/1920-10/1966 & 1/1975 | | NAKINA |
| 8187 | LV | Lehigh Valley R.R. Co. | 4/38-10/66 & 1/75 | | NRHS |
| 8188 | LV | Lehigh Valley R.R. Co. (Robert C. Haldeman, Trustee) | eliminated 4/76 | | NRHS |
| 8189 | LV | Consolidated Rail Corp. | added 4/76; 1/80-1/94; eliminated 7/99 | | NRHS |
| 8190 | LV | Norfolk Southern Ry. Co. (Norfolk Southern) | Jul-00 | | NRHS |
| 8191 | LV | NORFOLK SOUTHERN [CONSOLIDATED RAIL CORP.; LEHIGH VALLEY RR] | | | PWRC |
| 8192 | LV | Lehigh Valley Railroad (Norfolk Southern) | | | RSRV |
| 8193 | LV | Lehigh Valley | | USA | TRAFFIC |
| 8194 | LVA | 30 West Aviation LLC t/a Hawaiian Globetrotter | Callsign: Akaal, | USA | AVCODES |
| 8195 | LVAE | LAVA INTERPRISES INC | | | SCAC3 |
| 8196 | LVAE | LAVA ENTERPRISES INC | | | SCAC4 |
| 8197 | LVAF | LOVE EXPRESS INC | | | SCAC4 |
| 8198 | LVAG | LARA VEGA, ANUAR GUSTAVO | | | SCAC4 |
| 8199 | LVAL | Lackawanna Valley R.R. Corp. | added 1/1986; eliminated 7/1987; 1/1994; eliminated 10/1997; 7/2000-7/2005 | | NAKINA |
| 8200 | LVAL | Lackawanna Valley R.R. | added 7/1985; eliminated 1/1986 | | NAKINA |
