| 4301 | LLAN | LAKELAND EQUIPMENT CORP | | | SCAC4 |
| 4302 | LLAQ | LIQUITRAN LLC | | | SCAC4 |
| 4303 | LLAR | LONG, LAMAR | | | SCAC4 |
| 4304 | LLAS | LAND LINE TRANSPORT | | | SCAC4 |
| 4305 | LLAT | LONG, L A TRUCKING INC | | | SCAC3 |
| 4306 | LLAU | ABL SPACE SYSTEMS | | USA | BIC |
| 4307 | LLB | Lloyd Aereo Boliviano S.A. (LAB) | IATA: LB, Callsign: Lloydaereo, IATA Prefix: 051, Ceased Operations | BOL | AVCODES |
| 4308 | LLB | Lloyd Aereo Boliviano | IATA: LB | | ICAO1 |
| 4309 | LLB | Leuk-Leukerbad-Bahn / Chemin de Fer Electrique de Loèche-les-Bains | | CH | TRAFFIC |
| 4310 | LLBA | Linzer Lokalbahn | Real: LLB, Original company name until 2000. In 2000 renamed to LILO. | A | TRAFFIC |
| 4311 | LLBC | LLB CARTAGE INC | | | SCAC3 |
| 4312 | LLBG | LILLIBRIDGE TRANSPORTATION INC | | | SCAC4 |
| 4313 | LLBT | L L & L FARMS-TRUCKING | | | SCAC4 |
| 4314 | LLBU | LLOYD BRASILEIRO LINE, INC. | | | SCAC3 |
| 4315 | LLBU | LLOYD BRASILEIRO LINE, INC. | | | SCAC4 |
| 4316 | LLC | Lankalink Aircargo (Pvt) Ltd. | Callsign: Lankalink, | CL | AVCODES |
| 4317 | LLC | FlyLAL Charters JSC | Callsign: flyLAL Charters, Name changed to Small Planet Airlines AS. during 2012. Part of the Avia Solutions Group. | LT | AVCODES |
| 4318 | LLC | Small Planet Airlines AS. | Callsign: Lima Lima Charley, Name changed from FlyLAL Charters JSC. Part of the Avia Solutions Group. | LT | AVCODES |
| 4319 | LLC | Small Planet Airlines UAB | IATA: S5, Callsign: Small Planet, Ceased operations on 28 November 2018. | LT | AVCODES |
| 4320 | LLCE | LANDIS LUXUARY COACHES | | | SCAC3 |
| 4321 | LLCE | LOGIN LOGISTICS LTD | | | SCAC4 |
| 4322 | LLCF | LEEK LOGISTICS CORPORATION | | | SCAC4 |
| 4323 | LLCH | LIBERTY LOGISTICS LLC | | | SCAC4 |
| 4324 | LLCI | LILCO INC | | | SCAC3 |
| 4325 | LLCJ | LAYDEN LOGISTICS COMPANY INC | | | SCAC4 |
| 4326 | LLCN | LELCO INC | | | SCAC3 |
| 4327 | LLCO | L & L CONTRACTORS DELIVERY CORP | | | SCAC3 |
| 4328 | LLCO | LUCIA LUMBER COMPANY INC | | | SCAC4 |
| 4329 | LLCP | L & L CONTAINER CORP | | | SCAC3 |
| 4330 | LLCQ | LOYALIST LOGISTICS CORPORATION | | | SCAC4 |
| 4331 | LLCR | L & L CHARTER | | | SCAC3 |
| 4332 | LLCS | LLAMAS CONSTRUCTION COMPANY | | | SCAC3 |
| 4333 | LLCS | L & L CARRIERS | | | SCAC4 |
| 4334 | LLCT | LONG LINE CORP, THE | | | SCAC3 |
| 4335 | LLCW | LIVE LOBSTER CO INC | | | SCAC4 |
| 4336 | LLCX | LLCX Inc. | added 10/1985; 1/1994-7/2005; eliminated 1/2009 | | NAKINA |
| 4337 | LLCX | Lyon Lumber Co. | 8/1920 | | NAKINA |
| 4338 | LLCX | LLCX Inc. | 1/94-7/2000 | | NRHS |
| 4339 | LLCX | *LYON LUMBER CO. | | | PWRC |
| 4340 | LLCX | +LLCX INCORPORATED | | | PWRC |
| 4341 | LLCX | LLCX Inc. | | | RSRV |
| 4342 | LLCY | LEE LUMBER COMPANY LLC | | | SCAC4 |
| 4343 | LLD | Lloyd Aviation, C.A. | Callsign: Avia Lloyd, | YV | AVCODES |
| 4344 | LLDS | L AND L DELIVERY SERVICE | | | SCAC3 |
| 4345 | LLDU | TRADECORP INTERNATIONAL PTY LTD | | | SCAC4 |
| 4346 | LLDY | LUCKY LADY OIL COMPANY | | | SCAC4 |
| 4347 | LLE | Aerotransporte Convalles | Callsign: Convalles, | YV | AVCODES |
| 4348 | LLED | LT LOGISTICA | | | SCAC4 |
| 4349 | LLEE | LEFT LANE EXPRESS INC | | | SCAC4 |
| 4350 | LLEP | LYON & LYON ENTERPRISES | | | SCAC3 |
| 4351 | LLEQ | L & L | | | SCAC4 |
| 4352 | LLES | LITTLE LEAGUE EQUIPMENT SALES LTD | | | SCAC4 |
| 4353 | LLET | LEWIS, L E TRANS | | | SCAC3 |
| 4354 | LLEY | LILLEY, D TRANSPORTATION INC | | | SCAC3 |
| 4355 | LLFD | LALONDE, LEWIS FENCING LTD | | | SCAC4 |
| 4356 | LLFE | LONG LASTING FARM EQUIPMENT CO INC | | | SCAC3 |
| 4357 | LLFL | L & L FREIGHT LINE INC | | | SCAC3 |
| 4358 | LLFL | LOWES LUMBER & FURNITURE LTD | | | SCAC4 |
| 4359 | LLFS | LLT FARMS INC | | | SCAC3 |
| 4360 | LLFS | LINCOLN LAND FS INC | | | SCAC4 |
| 4361 | LLFV | LONGHORN LOGISTICS & FREIGHT | | | SCAC4 |
| 4362 | LLG | Luftline Georgia Ltd | IATA: GX, Callsign: Kakheti, IATA Prefix: 559, Ceased operations. | GE | AVCODES |
| 4363 | LLGA | L & L GARNETT CONSTRUCTION | | | SCAC4 |
| 4364 | LLGB | L T A LOGISTICS INC | | | SCAC4 |
| 4365 | LLGF | LOREALL LOGISTICS INC | | | SCAC4 |
| 4366 | LLGJ | LINEAR LOGISTICS LLC | | | SCAC4 |
| 4367 | LLGL | LIGHTNING LOGISTICS LLC | | | SCAC4 |
| 4368 | LLGN | L & L GARDENS INC | | | SCAC4 |
| 4369 | LLGP | LEADER LOGISTICS GROUP | | | SCAC4 |
| 4370 | LLGQ | LOTUS LOGISTICS LLC | | | SCAC4 |
| 4371 | LLGR | LIGHTNING LOGISTICS LLC | | | SCAC4 |
| 4372 | LLGS | LIBERTY LOGISTICS SERVICES INC | | | SCAC4 |
| 4373 | LLGW | LIS LOGISTIC GLOBAL INC | | | SCAC4 |
| 4374 | LLH | Airport Handling | | UA | AVCODES |
| 4375 | LLHH | LAEISZ, F SCHIFFAHRTSGESELLSCHAFT M | | | SCAC3 |
| 4376 | LLHK | LEWIS, LEE H TRUCKING | | | SCAC3 |
| 4377 | LLHL | LAUGHLINS LONG HAUL LTD | | | SCAC3 |
| 4378 | LLHL | LIBERTY LINEHAUL WEST INC | | | SCAC4 |
| 4379 | LLHT | LITTLE HARBOR TRANSPORTATION INC | | | SCAC3 |
| 4380 | LLHT | LITTLE LAHAVE TRAWLERS | | | SCAC4 |
| 4381 | LLI | Small Planet Airlines Italia | IATA: P2, Callsign: Auriga, Operating Licence suspended by Italian Civil Aviation Authority (ENAC) on 20 January 2014. | I | AVCODES |
| 4382 | LLIA | LOGOS LOGISTIC INC | | | SCAC4 |
| 4383 | LLIB | LAURA LOGISTICS INC | | | SCAC4 |
| 4384 | LLIC | LINEHAN LIMOUSINE INC | | | SCAC3 |
| 4385 | LLIC | LTD LOGISTICS INC | | | SCAC4 |
| 4386 | LLIE | LILLIE ENTERPRISES | | | SCAC4 |
| 4387 | LLIF | LLI | | | SCAC4 |
| 4388 | LLIG | LAGNIAPPE LOGISTICS INC | | | SCAC4 |
| 4389 | LLII | L LINES INC | | | SCAC3 |
| 4390 | LLII | LIMITLESS INTERNATIONAL INC | | | SCAC4 |
| 4391 | LLIJ | LAVINSTAR LOGISTICS INC | | | SCAC4 |
| 4392 | LLIK | LAKEY & LAKEY INC | | | SCAC4 |
| 4393 | LLIL | LIBERTY LINES INC | | | SCAC4 |
| 4394 | LLIM | LIGHTHOUSE LOBSTER INC | | | SCAC4 |
| 4395 | LLIN | LAM LEASING INC | | | SCAC3 |
| 4396 | LLIN | L & L INC | | | SCAC4 |
| 4397 | LLIO | LLI | | | SCAC4 |
| 4398 | LLIP | LEGION LOGISTICS INC | | | SCAC4 |
| 4399 | LLIQ | LEE LINES INC | | | SCAC4 |
| 4400 | LLIR | LEANDER LOGISTICS INC | | | SCAC4 |
