| 5401 | PLPI | PELLILETERI, PHIL TRANSFER CO | | | SCAC3 |
| 5402 | PLPJ | PELPHREY, JACK | | | SCAC3 |
| 5403 | PLPK | PORTLAND PACKAGING CO INC | | | SCAC3 |
| 5404 | PLPM | PLUMER, PAMELA D | | | SCAC3 |
| 5405 | PLPN | P & L TRANSPORTATION INC | | | SCAC3 |
| 5406 | PLPN | P & L TRANSPORTATION INC | | | SCAC4 |
| 5407 | PLPO | PALMER PRODUCE | | | SCAC3 |
| 5408 | PLPOL | PFEIFER & LANGEN POLSKA S.A. | | PL | VKM |
| 5409 | PLPQ | POLSEN-GLASER COMPANY INC | | | SCAC3 |
| 5410 | PLPS | PHILLIPS PETROLEUM COMPANY | | | SCAC3 |
| 5411 | PLPT | PHELPS TRUCKING | | | SCAC3 |
| 5412 | PLPT | PIPELINE PETROLEUM TRANSPORT | | | SCAC4 |
| 5413 | PLPY | PANLLOYD LOGISTICS PRIVATE LIMITED | | | SCAC4 |
| 5414 | PLQ | Planet Airlines | Callsign: Planetcam, | CAM | AVCODES |
| 5415 | PLQA | PLATT & ASSOCIATES LC | | | SCAC4 |
| 5416 | PLQB | PALIBURG CORPORATION | | | SCAC3 |
| 5417 | PLQG | PRECISION LOGISTICS GROUP LLC | | | SCAC4 |
| 5418 | PLQI | PROFESSIONAL LOGISTICS INC | | | SCAC4 |
| 5419 | PLQM | PALMER AUDIO INC | | | SCAC4 |
| 5420 | PLQO | PLEASANT OIL CO INC | | | SCAC4 |
| 5421 | PLQP | PISGAH LOGISTICS COMPANY | | | SCAC4 |
| 5422 | PLQS | PLIMSOLL SHIPPING INC. | | | SCAC3 |
| 5423 | PLQS | PLIMSOLL SHIPPING INC. | | | SCAC4 |
| 5424 | PLQT | PLAQUEMINE TOWING CO | | | SCAC3 |
| 5425 | PLR | Northwestern Air Lease Ltd. | IATA: J3, Callsign: Polaris, IATA Desigantor changed form CT* | CDN | AVCODES |
| 5426 | PLR | Northwestern Air Lease Ltd. | IATA: CT, Callsign: Polaris, IATA Desigantor changed to J3 | CDN | AVCODES |
| 5427 | PLR | Polar Airways Ltd. | Callsign: Polar, | GB | AVCODES |
| 5428 | PLR | Northwestern Air | IATA: J3 | | ICAO1 |
| 5429 | PLRC | POLAR CORP | | | SCAC3 |
| 5430 | PLRD | PELLETIER, RICHARD TRANSIT INC | | | SCAC3 |
| 5431 | PLRH | PELT, RALPH TRUCKING INC | | | SCAC3 |
| 5432 | PLRI | PLR TRANSPORT INC | | | SCAC3 |
| 5433 | PLRI | POLARIS INFLATABLE BOATS (CANADA) L | | | SCAC4 |
| 5434 | PLRK | PLYMOUTH ROCK TRANSP CORP | | | PWRC |
| 5435 | PLRK | PLYMOUTH ROCK TRANSPORTATION CORP | | | SCAC3 |
| 5436 | PLRK | PLYMOUTH ROCK TRANSPORTATION CORP | | | SCAC4 |
| 5437 | PLRL | PELLROSE TRUCKING LLC | | | SCAC4 |
| 5438 | PLRM | POLARMAC | | | SCAC4 |
| 5439 | PLRN | PIONEER LOGISTICS INC | | | SCAC4 |
| 5440 | PLRO | PILCHER, LOREN R | | | SCAC3 |
| 5441 | PLRO | PLEASANT RIVER LUMBER CO | | | SCAC4 |
| 5442 | PLRP | P L R TRANSPORT INC | | | SCAC3 |
| 5443 | PLRQ | PLASTOCOR INC | | | SCAC4 |
| 5444 | PLRR | PLUMROSE USA INC | | | SCAC4 |
| 5445 | PLRS | POLAR STEAMSHIP LINE | | | SCAC3 |
| 5446 | PLRS | POLAR STEAMSHIP LINE | | | SCAC4 |
| 5447 | PLRU | PIC LEASING CORPORATION | | | PWRC |
| 5448 | PLRU | Pic Leasing Corporation | | | RSRV |
| 5449 | PLRU | PIC LEASING CORP | | | SCAC3 |
| 5450 | PLRU | PIC LEASING CORPORATION | | | SCAC4 |
| 5451 | PLRX | PIC Trans, Inc. | 7/2000-7/2005 (not listed) | | NAKINA |
| 5452 | PLRX | Producers Pipe Line & Refining Co. | 7/1923 | | NAKINA |
| 5453 | PLRX | PIC Trans, Inc. | Jul-00 | | NRHS |
| 5454 | PLRX | *PRODUCERS PIPE LINE & REFINING CO. | | | PWRC |
| 5455 | PLRX | *PITTSBURG, LISBON & WESTERN RAILWAY | | | PWRC |
| 5456 | PLRX | +PIC TRANS INCORPORATED | | | PWRC |
| 5457 | PLRX | PIC Trans | | | RSRV |
| 5458 | PLS | Palio Air Service | ICAO callsign Palio assigned | I | AVCODES |
| 5459 | PLS | Palio Air Service | Callsign: Palio, | I | AVCODES |
| 5460 | PLSA | PLEASANT TRUCKING INC | | | SCAC3 |
| 5461 | PLSA | PLEASANT TRUCKING INC | | | SCAC4 |
| 5462 | PLSB | PLATT, S B III | | | SCAC3 |
| 5463 | PLSC | P & L SUPPLY CO INC | | | SCAC3 |
| 5464 | PLSD | PALISADE OIL COMPANY | | | SCAC4 |
| 5465 | PLSE | PAYLESS EXPRESS | | | SCAC3 |
| 5466 | PLSE | PLANTS EXPRESS | | | SCAC4 |
| 5467 | PLSF | PLESS TRAFFIC SALES INC | | | SCAC3 |
| 5468 | PLSF | PLESS TRAFFIC SALES INC | | | SCAC4 |
| 5469 | PLSG | PATTON LEASING INC | | | SCAC3 |
| 5470 | PLSH | PALM SHIPPING INC. | | | SCAC3 |
| 5471 | PLSH | PIERCE LOGISTICAL SERVICES INC | | | SCAC4 |
| 5472 | PLSI | PLESS MOVING & STORAGE INC | | | SCAC3 |
| 5473 | PLSI | P L TRANSPORT INC | | | SCAC4 |
| 5474 | PLSJ | PREMIER LIMOUSINE SERVICE INC OF NE | | | SCAC3 |
| 5475 | PLSJ | POULSEN, J SHIPPING | | | SCAC4 |
| 5476 | PLSL | PLATOU SHIPPING CO LTD. | | | SCAC3 |
| 5477 | PLSM | PALMER-SIMMONS TRUCKING CO | | | SCAC3 |
| 5478 | PLSN | PRIME LOGISTIC SOLUTIONS INC | | | SCAC4 |
| 5479 | PLSO | PL SHIPPING CO | | | SCAC4 |
| 5480 | PLSP | POLISH STEAMSHIP COMPANY | | | SCAC3 |
| 5481 | PLSP | POLISH STEAMSHIP COMPANY | | | SCAC4 |
| 5482 | PLSQ | PALS CARTAGE | | | SCAC3 |
| 5483 | PLSQ | PLSA LOGISTICS INC | | | SCAC4 |
| 5484 | PLSR | PELLISSIER TRUCKING INC | | | SCAC3 |
| 5485 | PLSS | PAOLINA & SONS TRUCKING | | | SCAC3 |
| 5486 | PLSS | PALMER LOGISTICS SERVICES | | | SCAC4 |
| 5487 | PLST | PALLAS TRUCKING INC | | | SCAC3 |
| 5488 | PLSV | PRESIDENTIAL LIMOUSINE SERVICE INC | | | SCAC3 |
| 5489 | PLSV | PAXSON LOGISTIC SERVICES | | | SCAC4 |
| 5490 | PLSW | PROSPECT LOGISTICS SERVICES LLC | | | SCAC4 |
| 5491 | PLSY | POWELL, SONNY TRUCKING | | | SCAC3 |
| 5492 | PLT | South Carolina Aeronautics Commission | Callsign: Palmetto, | USA | AVCODES |
| 5493 | PLT | South Carolina Aeronautics Commission | | | ICAO1 |
| 5494 | PLTA | PLANT SERVICE CORPORATION | | | SCAC4 |
| 5495 | PLTB | PETROL TRANSPORT INC | | | SCAC3 |
| 5496 | PLTB | PETROL TRANSPORT INC | | | SCAC4 |
| 5497 | PLTC | P & L TRANSPORTATION CO, INC | | | SCAC3 |
| 5498 | PLTD | P L T TRUCKING | | | SCAC3 |
| 5499 | PLTE | PLATTE PIPE LINE COMPANY | | | SCAC3 |
| 5500 | PLTE | PLATINUM EXPRESS INC | | | SCAC4 |
