| 4401 | LLIW | LAWSON LOGISTICS INC | | | SCAC4 |
| 4402 | LLIX | Services Unlimited | added 1/1994; 7/2000-7/2005 | | NAKINA |
| 4403 | LLIX | LUC Leasing Inc. | added 7/1978; 1/1980; eliminated 1/1994 | | NAKINA |
| 4404 | LLIX | LUC Leasing Inc. | added 7/78; 1/80; eliminated 1/94 | | NRHS |
| 4405 | LLIX | Services Unlimited | added 1/94; 7/2000 | | NRHS |
| 4406 | LLIX | (RCMX) SERVICES UNLIMITED [LUC LEASING INC] | | | PWRC |
| 4407 | LLIX | LUC Leasing | | | RSRV |
| 4408 | LLIX | SERVICES UNLIMITED | | | SCAC4 |
| 4409 | LLIY | LLOYD LOGISTICS INC | | | SCAC4 |
| 4410 | LLJ | Beijing Mayboune General Aviation Co., Ltd. | Callsign: Mayboune Jet, | PRC | AVCODES |
| 4411 | LLJE | LEWIS, L J ENTERPRISES INC | | | SCAC3 |
| 4412 | LLK | Life Line Aviation A.E. | Callsign: Air Life, | GR | AVCODES |
| 4413 | LLK | Lokalbahn Lam-Kötzting AG | | D | TRAFFIC |
| 4414 | LLKC | LARA-LI TRUCKING INC | | | SCAC3 |
| 4415 | LLKC | LOZON, LEO TRUCKING INC | | | SCAC4 |
| 4416 | LLKG | L & L TRUCKING INC | | | SCAC3 |
| 4417 | LLKL | LOAD LINK LTD | | | SCAC3 |
| 4418 | LLKN | L & L TRUCKING | | | SCAC3 |
| 4419 | LLKN | LYLE & LAVONNE TRUCKING INC | | | SCAC4 |
| 4420 | LLKT | LOWER LAKES TOWING LTD | | | SCAC4 |
| 4421 | LLKX | Needham Transportation Co. | added 10/1968; 4/1970-1/1980; eliminated 4/1988 | | NAKINA |
| 4422 | LLKX | Needham Transportation Co. | added 10/68; 4/70-1/80; eliminated 4/88 | | NRHS |
| 4423 | LLKX | NEEDHAM TRANSPORTATION CO. | | | PWRC |
| 4424 | LLKX | Needham Transportation | | | RSRV |
| 4425 | LLL | Lao Air Company | Name change to Lao Skyway | LAO | AVCODES |
| 4426 | LLL | Lao Skyway | IATA: LK, Callsign: Lavie, Name change from Lao Air Company. | LAO | AVCODES |
| 4427 | LLL | Lao Air Company | | | ICAO1 |
| 4428 | LLLA | LOPEZ LOPEZ, LUIS FERNANDO | | | SCAC4 |
| 4429 | LLLC | LANDOLL CORPORATION | | | SCAC3 |
| 4430 | LLLC | LEONARD LOGISTICS LLC | | | SCAC4 |
| 4431 | LLLE | LES LOGISTIQUES LOYAL EXPRESS INC | | | SCAC4 |
| 4432 | LLLG | L T L/LAUGESEN TRUCKING LINES | | | SCAC3 |
| 4433 | LLLH | LAUBACH LOGISTICS LLC | | | SCAC4 |
| 4434 | LLLI | LEE, LAURA LTD INC | | | SCAC3 |
| 4435 | LLLI | LOCATION LESAB LEASING INC | | | SCAC4 |
| 4436 | LLLJ | L & L LEOS INC | | | SCAC4 |
| 4437 | LLLK | LOADTRACKER LOGISTICS LLC | | | SCAC4 |
| 4438 | LLLL | LITTLE LOUIES LTL & REFRIGERATED IN | | | SCAC3 |
| 4439 | LLLM | L L L TRANSPORT INC | | | SCAC3 |
| 4440 | LLLM | L L L TRANSPORT INC | | | SCAC4 |
| 4441 | LLLN | LOCUST LANE LINES | | | SCAC3 |
| 4442 | LLLP | LUBENOW LOGISTICS LLC | | | SCAC4 |
| 4443 | LLLQ | LITTLE LULUS MOTOR SERVICE INC | | | SCAC3 |
| 4444 | LLLQ | LAKEVIEW LOGISTICS LLC | | | SCAC4 |
| 4445 | LLLR | LIONEL LEISURE INC | | | SCAC3 |
| 4446 | LLLR | LAVIGNE LOGISTICS LLC | | | SCAC4 |
| 4447 | LLLS | L L LEASING COMPANY INC | | | SCAC3 |
| 4448 | LLLX | Louisiana Leasing Ltd. of Illinois | added 10/1995; 7/2000-7/2005 | | NAKINA |
| 4449 | LLLX | Tutcher Magic Gas Co., Inc. | added 7/1975; eliminated 4/1977 | | NAKINA |
| 4450 | LLLX | Lewis & Sons Leasing Co. | added 7/1974; 1/1975; eliminated 1/1975 | | NAKINA |
| 4451 | LLLX | Lewis & Sons Leasing Co. | added 7/74; 1/75; eliminated 1/75 | | NRHS |
| 4452 | LLLX | Tutcher Magic Gas Co., Inc. | added 7/75 | | NRHS |
| 4453 | LLLX | Louisiana Leasing Ltd. of Illinois | added 10/95; 7/2000 | | NRHS |
| 4454 | LLLX | *LEWIS & SONS LEASING CO. | | | PWRC |
| 4455 | LLLX | *TUTCHER MAGIC GAS CO., INC. | | | PWRC |
| 4456 | LLLX | +LOUISIANA LEASING LIMITED OF ILLINOIS | | | PWRC |
| 4457 | LLLX | Louisiana Leasing Limited Of Illinois | | | RSRV |
| 4458 | LLM | Yamal Airlines | IATA: YL, Callsign: Yamal, IATA Prefix: 664, Designator YL recalled by IATA. Designator YL reinstated by IATA | RUS | AVCODES |
| 4459 | LLM | Yamal Airlines | IATA: YC, Callsign: Yamal, IATA Prefix: 664, Designator YL recalled by IATA. Designator YL reinstated by IATA | RUS | AVCODES |
| 4460 | LLM | Yamal Airlines | IATA: YL | | ICAO1 |
| 4461 | LLMC | LEE LOCAL MOVING COMPANY | | | SCAC3 |
| 4462 | LLMH | L L MOBILE HOME SERVICE INC | | | SCAC3 |
| 4463 | LLMI | LINDSEY LIMOUSINE INC | | | SCAC3 |
| 4464 | LLMO | L & L MOTOR SERVICE INC | | | SCAC3 |
| 4465 | LLMS | LINCOLN LIMOUSINE SERVICE INC | | | SCAC3 |
| 4466 | LLMS | LLAMOSAS TRANSPORT INC | | | SCAC4 |
| 4467 | LLMV | LINCOLN LAND MOVING & STORAGE INC | | | SCAC3 |
| 4468 | LLMX | RETIRED 09-01-92 ATP | | | PWRC |
| 4469 | LLN | Allen Corporation of America | Callsign: Allen, | USA | AVCODES |
| 4470 | LLN | LIN LINES INC | | | SCAC4 |
| 4471 | LLNB | LLEWELLYN, BOB TRUCKING | | | SCAC3 |
| 4472 | LLNB | LLEWELLYN, BOB TRUCKING | | | SCAC4 |
| 4473 | LLNC | LINCOLNLAND COACH INC | | | SCAC3 |
| 4474 | LLNK | LAND LINK LOGISTICS INC | | | SCAC4 |
| 4475 | LLNK | LondonLinks | | GB | TRAFFIC |
| 4476 | LLNL | LLOYD NED LINES | | | SCAC3 |
| 4477 | LLNL | LLOYD NED LINES | | | SCAC4 |
| 4478 | LLNT | LACAILLADE, LONNIE T | | | SCAC4 |
| 4479 | LLNU | BDC INTERNATIONAL SA | | | SCAC4 |
| 4480 | LLNX | Western Fruit Express Co. | added 1/1961; 4/1961-4/1970; eliminated 1/1973; 1/1975 | | NAKINA |
| 4481 | LLNX | Western Fruit Express Co. | 4/61-4/70; eliminated 1/73; 1/75 | | NRHS |
| 4482 | LLNX | WESTERN FRUIT EXPRESS CO. | | | PWRC |
| 4483 | LLO | Operation Enduring Freedom | Callsign: Apollo, | CDN | AVCODES |
| 4484 | LLO | Eliadamello S.p.A. | | I | AVCODES |
| 4485 | LLO | Operation Enduring Freedom | | | ICAO1 |
| 4486 | LLOA | LOADMATCH LOGISTICS | | | SCAC4 |
| 4487 | LLOB | LEGACY LOGISTICS | | | SCAC4 |
| 4488 | LLOD | LLOYD, SIDNEY D TRUCKING | | | SCAC3 |
| 4489 | LLOG | LESAINT LOGISTICS TRANSPORTATION IN | | | SCAC4 |
| 4490 | LLOI | LLOYDS INC | | | SCAC3 |
| 4491 | LLOM | LA LOMITA TRANSPORT COMPANY | | | SCAC4 |
| 4492 | LLON | L & L OIL AND GAS SERVICES LLC | | | SCAC4 |
| 4493 | LLOQ | LLOYD, W R | | | SCAC3 |
| 4494 | LLOS | LUXURY LIMO SERVICE | | | SCAC3 |
| 4495 | LLOT | LLOYDS TRANSFER & STORAGE | | | SCAC4 |
| 4496 | LLOV | LLOYDS MOVING CO, INC | | | SCAC3 |
| 4497 | LLOV | LOPEZ LOPEZ, VICTOR | | | SCAC4 |
| 4498 | LLOW | LEADLOW INC | | | SCAC3 |
| 4499 | LLOX | Lox Equipment Co. | 4/1970; added 7/1970; eliminated 1/1971 | | NAKINA |
| 4500 | LLOX | Lox Equipment Co. | 4/70; added 7/70; eliminated 1/71 | | NRHS |
