| 1001 | LBNQ | LOBBINS, J | | | SCAC3 |
| 1002 | LBNS | LIBERIAN SKYLIGHT TRANSPORTS INC | | | SCAC3 |
| 1003 | LBNT | LAURENDEAU, TRANSPORT BERNARD INC | | | SCAC3 |
| 1004 | LBNV | LIBERIAN VIOLET TRANSPORTS | | | SCAC3 |
| 1005 | LBNV | LIBERIAN VIOLET TRANSPORTS | | | SCAC4 |
| 1006 | LBO | Libo Air Cargo | IATA: 6W, IATA Prefix: 920, | LAR | AVCODES |
| 1007 | LBOA | LEE, BOB AUTO TRANSPORT | | | SCAC3 |
| 1008 | LBOC | LAMB OIL COMPANY | | | SCAC4 |
| 1009 | LBOI | LEE BROS INC | | | SCAC3 |
| 1010 | LBOL | LITTLE BEAR OIL CO | | | SCAC3 |
| 1011 | LBOS | LYGNOS BROTHERS SHIPPING INC | | | SCAC3 |
| 1012 | LBOT | LAURIE, BOB TRUCKING INC | | | SCAC3 |
| 1013 | LBOT | LBO TRANSPORTATION INC | | | SCAC4 |
| 1014 | LBOU | TERMCOTANK SA | | CH | BIC |
| 1015 | LBOU | TERMCOTANK SA | | | SCAC4 |
| 1016 | LBPH | Lokalbahn Payerbach-Hirschwang | | A | TRAFFIC |
| 1017 | LBPM | L B PAPER MILL SUPPLIES | | | SCAC4 |
| 1018 | LBPT | L & B PRODUCE TRUCKING | | | SCAC3 |
| 1019 | LBPT | LINDAL BUILDING PRODUCTS | | | SCAC4 |
| 1020 | LBPT | Long Beach Public Transportation | | US-CA | TRAFFIC |
| 1021 | LBPX | LABELLE POINT RAILROAD CO. | | | PWRC |
| 1022 | LBPY | LIBERIAN PROSPERITY TRANSPORTS INC. | | | SCAC3 |
| 1023 | LBQ | Quest Diagnostics | Callsign: Labquest, | USA | AVCODES |
| 1024 | LBQ | Quest Diagnostics | | | ICAO1 |
| 1025 | LBQ | Lingen-Berge-Quakenbrück Kleinbahn | | D | TRAFFIC |
| 1026 | LBR | Elbe Air Lufttransport GmbH | Callsign: Motion, | D | AVCODES |
| 1027 | LBR | Air Borealis | Callsign: Northlight, | CDN | AVCODES |
| 1028 | LBR | Elbe Air Transport | | | ICAO1 |
| 1029 | LBR | Lowville & Beaver River R.R. Co. | added 10/2003; eliminated 4/2004; 7/2005 | | NAKINA |
| 1030 | LBR | The Lowville and Beaver River R.R. Co. | 1/1975-7/2000 | | NAKINA |
| 1031 | LBR | The Lowville and Beaver River R.R. Co. | 1/75-7/2000 | | NRHS |
| 1032 | LBR | LOWVILLE & BEAVER RIVER RAILROAD CO. | | | PWRC |
| 1033 | LBR | Lowville and Beaver River Railroad | | | RSRV |
| 1034 | LBR | Länderbahnreisen | | DE | VKM |
| 1035 | LBRA | LIBERAL TRANSPORTATION | | | SCAC3 |
| 1036 | LBRA | LIBERAL TRANSPORTATION | | | SCAC4 |
| 1037 | LBRB | LEEBER TRANSPORTATION INC | | | SCAC3 |
| 1038 | LBRC | LANGE BROS CONSTRUCTION INC | | | SCAC3 |
| 1039 | LBRD | LOMBARDI TRUCKING INC | | | SCAC3 |
| 1040 | LBRD | LANDBRIDGE LOGISTICS LTD | | | SCAC4 |
| 1041 | LBRI | LABATT BREWERIES OF CANADA LIMITED | | | SCAC3 |
| 1042 | LBRI | LALIBERTY TRUCKING INC | | | SCAC4 |
| 1043 | LBRJ | LIBERTY RECYCLING | | | SCAC4 |
| 1044 | LBRK | L & B TRUCKING | | | SCAC4 |
| 1045 | LBRL | LUBIN, RONALD | | | SCAC4 |
| 1046 | LBRM | LIBERTY MOVERS INC | | | SCAC4 |
| 1047 | LBRO | LINK BROS TRUCKING CO INC | | | SCAC3 |
| 1048 | LBRO | LOBO EXPRESS | | | SCAC4 |
| 1049 | LBRP | LIBERTY TRANSPORT | | | SCAC3 |
| 1050 | LBRQ | LA BARGE MIRRORS INC | | | SCAC3 |
| 1051 | LBRR | LIMON BROTHERS | | | SCAC4 |
| 1052 | LBRS | LABRIE, SABLIERE | | | SCAC3 |
| 1053 | LBRU | COMPANHIA DE NAVEGACAO LLOYD | | | SCAC3 |
| 1054 | LBRU | COMPANHIA DE NAVEGACAO LLOYD | | | SCAC4 |
| 1055 | LBRX | Lyle Branchflower Co. | 1/1950-1/1952; eliminated 4/1953 | | NAKINA |
| 1056 | LBRX | Lyle Branchflower Co. | Jan-52 | | NRHS |
| 1057 | LBRX | LYLE BRANCHFLOWER CO. | | | PWRC |
| 1058 | LBRY | LIBERTY MOVING & STORAGE | | | SCAC3 |
| 1059 | LBRY | LINDERS, BRYAN | | | SCAC4 |
| 1060 | LBS | Linea Aerea Bolivariana LABSA | Callsign: Labsa, | YV | AVCODES |
| 1061 | LBSA | LIBERTY STAR SHIPPING | | | SCAC3 |
| 1062 | LBSB | LB STEEL LLC COBURN STEEL | | | SCAC4 |
| 1063 | LBSC | LABRADOR SHIPPING CORP | | | SCAC3 |
| 1064 | LBSC | LIBERTY STAR SHIPPING CORPORATION | | | SCAC4 |
| 1065 | LBSCR | London Brighton & South Coast Railway | Later: Southern Railway | GB | TRAFFIC |
| 1066 | LBSE | LAMBS EXPRESS INC | | | SCAC3 |
| 1067 | LBSF | LOWDEN, BILL SEAFOOD INC | | | SCAC3 |
| 1068 | LBSG | LIBERIAN STINGRAY TRANSPORTS INC | | | SCAC3 |
| 1069 | LBSG | LES BLEUTS SAUVAGES DU QUEBEC INC | | | SCAC4 |
| 1070 | LBSH | LIBERTY SHIPPERS INC | | | SCAC3 |
| 1071 | LBSH | LIBERTY TIRE SERVICES OF OHIO LLC | | | SCAC4 |
| 1072 | LBSI | LIBERTY SERVICE INC | | | SCAC3 |
| 1073 | LBSJ | LAS BARRANQUILLAS SA DE CV | | | SCAC4 |
| 1074 | LBSK | LEBSACK, BLAINE | | | SCAC3 |
| 1075 | LBSL | LEDUC BUS LINES LTD | | | SCAC3 |
| 1076 | LBSM | LAMBERT, SAM | | | SCAC3 |
| 1077 | LBSN | LORENZ BUS SERVICE INC | | | SCAC4 |
| 1078 | LBSO | LANE BALANCE SYSTEMS LLC | | | SCAC4 |
| 1079 | LBSP | LIBERTY TRANSPORT INC | | | SCAC4 |
| 1080 | LBSR | LAMBS, R TRUCKING INC | | | SCAC3 |
| 1081 | LBSR | LAMBS, R TRUCKING INC | | | SCAC4 |
| 1082 | LBSS | LONGS BUS SERVICE INC | | | SCAC3 |
| 1083 | LBST | LIEBSWAGER TRUCKING | | | SCAC3 |
| 1084 | LBSU | BSL & C LOGISTICA SRL | | | SCAC4 |
| 1085 | LBSW | L&B SWIFT EXPRESS | | | SCAC3 |
| 1086 | LBSW | L & B SWIFT | | | SCAC4 |
| 1087 | LBSX | Little Buffalo Creek Sand Co. | 7/1923 | | NAKINA |
| 1088 | LBSX | LITTLE BUFFALO CREEK SAND CO. | | | PWRC |
| 1089 | LBSY | LIBERIAN SERENITY TRANSPORTS, INC. | | | SCAC3 |
| 1090 | LBT | Nouvelair Tunisie | IATA: BJ, Callsign: Nouvelair, Designator reinstated by IATA. Name changed from Air Liberte Tunisie w.e.f. 01 September 1996. | TN | AVCODES |
| 1091 | LBT | Air Liberte Tunisie | IATA: BJ, Callsign: Nouvellair, Change of Name to Nouvelair Tunisie w.e.f. 01 September 1996. Established in 1989. Commenced operations on 21 March 1990. | TN | AVCODES |
| 1092 | LBT | Nouvel Air Tunisie | IATA: BJ | | ICAO1 |
| 1093 | LBT | Long Beach Transit | City: Long Beach | US-CA | TRAFFIC |
| 1094 | LBTA | L B TRANSPORT SERVICES INC | | | SCAC3 |
| 1095 | LBTB | L B TRUCKING | | | SCAC3 |
| 1096 | LBTC | LEONARD BROTHERS TRANSPORT COMPANY | | | SCAC3 |
| 1097 | LBTC | LIGHTHOUSE BOAT TRANSPORT INC | | | SCAC4 |
| 1098 | LBTD | LOBOSCO TRADING CO INC | | | SCAC3 |
| 1099 | LBTD | LBT ENTERPRISES LTD | | | SCAC4 |
| 1100 | LBTE | LONG BAR TRANSPORTATION COMPANY INC | | | SCAC3 |
