| 5201 | PLIK | PANTHER LINES | | | SCAC4 |
| 5202 | PLIL | PALLINI SHIPPING CO LTD. | | | SCAC3 |
| 5203 | PLIM | PLIMSOLL MARINE INC, | | | SCAC3 |
| 5204 | PLIN | PLAINS PIPE LINE COMPANY | | | SCAC3 |
| 5205 | PLIN | POULIN ENTERPRISES INC | | | SCAC4 |
| 5206 | PLIP | PELICAN TRANSPORTATION INC | | | SCAC3 |
| 5207 | PLIP | PELICAN TRANSPORTATION INC | | | SCAC4 |
| 5208 | PLIQ | PASCO LINES INC | | | SCAC3 |
| 5209 | PLIQ | PALM LITE ELECTRIC MOTORS INC | | | SCAC4 |
| 5210 | PLIT | PALLET LOGISTICS OF AMERICA | | | SCAC4 |
| 5211 | PLIU | PRUDENTIAL GRACE LINES, INC. | | | SCAC3 |
| 5212 | PLIU | PIPELINE CONNECTORS INTERNATIONAL L | | | SCAC4 |
| 5213 | PLIV | PETERSEN TRUCKING & LIVESTOCK | | | SCAC3 |
| 5214 | PLIX | Polymont Plastics Corp. | added 4/1992; 1/1994-7/2000; eliminated 10/2003; 7/2005 (not listed) | | NAKINA |
| 5215 | PLIX | Polysar Inc. | added 4/1981; eliminated 4/1992 | | NAKINA |
| 5216 | PLIX | Polysar Inc. | added 4/81; eliminated 4/92 | | NRHS |
| 5217 | PLIX | Polymont Plastics Corp. | added 4/92; 1/94-7/2000 | | NRHS |
| 5218 | PLIX | POLYMONT PLASTICS CORPORATION (POLYSAR INC.) | | | PWRC |
| 5219 | PLIX | Polymont Plastics Corporation | | | RSRV |
| 5220 | PLIX | POLYMONT PLASTICS CORPORATION | | | SCAC4 |
| 5221 | PLIZ | PELLEX INC. | | | PWRC |
| 5222 | PLIZ | P and L Intermodal Corporation | | | RSRV |
| 5223 | PLIZ | P & L INTERMODAL CORP | | | SCAC4 |
| 5224 | PLJ | Platinum Air Linhas Aereas Ltda | Callsign: Platinumjet, Founded in 2007. Ceased operations. | BR | AVCODES |
| 5225 | PLJQ | PAUL-JEFFREY CO INC | | | SCAC3 |
| 5226 | PLJQ | PALACIOS, J TRUCKING | | | SCAC4 |
| 5227 | PLJT | PROCTOR, L & J TRANSPORT INC | | | SCAC4 |
| 5228 | PLK | Pulkovo Aviation Enterprise | IATA: Z8, Callsign: Pulkovo, IATA Desigantor changed to FV. Name changed from Air Enterprise Pulkovo | RUS | AVCODES |
| 5229 | PLK | Air Enterprise Pulkovo | IATA: Z8, Callsign: Pulkovo, Name changed to Pulkovo Aviation Enterprise | RUS | AVCODES |
| 5230 | PLK | Pulkovo Aviation Enterprise | IATA: FV, Callsign: Pulkovo, IATA Prefix: 195, Merged with State Transport Company of Russia to form Rossiya Airlines OJSC. Name changed from Air Enterprise Pulkovo. IATA Desigantor changed from Z8 | RUS | AVCODES |
| 5231 | PLK | Pulkovo Aviation Enterprise | IATA: FV | | ICAO1 |
| 5232 | PLK | PKP Polskie Linie Kolejowe Spółka Akcyjna | | PL | VKM |
| 5233 | PLKA | PELKA TRUCKING | | | SCAC3 |
| 5234 | PLKD | PAULK TRUCKING INC | | | SCAC3 |
| 5235 | PLKD | PEEL TRANSPORT LTD | | | SCAC4 |
| 5236 | PLKG | P & L TRUCKING INC | | | SCAC3 |
| 5237 | PLKG | RENDAL A POULIN | | | SCAC4 |
| 5238 | PLKI | PLISINSKI BROS INC | | | SCAC3 |
| 5239 | PLKI | PEARL KITCHENS | | | SCAC4 |
| 5240 | PLKJ | POLLOCK, J TRANSPORT | | | SCAC3 |
| 5241 | PLKK | PIERSON, L K & K TRUCKING INC | | | SCAC3 |
| 5242 | PLKK | PILKINGTON TRUCKING | | | SCAC4 |
| 5243 | PLKLK | PETROTEL-LUKOIL SA | | RO | VKM |
| 5244 | PLKM | PLAKOURA MARITIME CORPORATION | | | SCAC3 |
| 5245 | PLKN | P & L TRUCKING | | | SCAC3 |
| 5246 | PLKN | PILOT TRUCK LINER INC | | | SCAC4 |
| 5247 | PLKO | POLK OIL CO INC | | | SCAC4 |
| 5248 | PLKQ | PELKEY TRANSPORATION INC | | | SCAC3 |
| 5249 | PLKQ | PACIFIC LINK INTL FREIGHT | | | SCAC4 |
| 5250 | PLKT | POLK TRAVEL | | | SCAC3 |
| 5251 | PLKT | PLAK-IT | | | SCAC4 |
| 5252 | PLKW | POLLOCK, W TRUCKING INC | | | SCAC4 |
| 5253 | PLKW | KOLEJE WIELKOPOLSKIE Sp. z o.o. | | PL | VKM |
| 5254 | PLL | Air Pal Escuela de Pilotos | Callsign: Air Pal, | E | AVCODES |
| 5255 | PLL | Air Pal | | | ICAO1 |
| 5256 | PLL | PLYMOUTH & LINCOLN | | | PWRC |
| 5257 | PLLA | PALLA ROSA TRUCKING INC | | | SCAC3 |
| 5258 | PLLB | POULIN LUMBER INC | | | SCAC4 |
| 5259 | PLLC | PAPCO LLC | | | SCAC4 |
| 5260 | PLLE | PAILLE, LEONARD INC | | | SCAC3 |
| 5261 | PLLE | PROMESA LOGISTICS LLC | | | SCAC4 |
| 5262 | PLLF | PHILLIPS FIBERS CO | | | SCAC3 |
| 5263 | PLLF | PERELLY LOGISTICS LLC | | | SCAC4 |
| 5264 | PLLG | PRECISION LOGISTICS LLC | | | SCAC4 |
| 5265 | PLLH | PARISH LEASING LLC | | | SCAC4 |
| 5266 | PLLI | PHILLIPS INTERSTATE TRANSPORT SERVI | | | SCAC3 |
| 5267 | PLLI | PARIS LANDING LINES INC | | | SCAC4 |
| 5268 | PLLJ | PASSWORD LOGISTICS LLC | | | SCAC4 |
| 5269 | PLLK | POWELL TRUCKING | | | SCAC3 |
| 5270 | PLLL | POWELL, LONNIE D | | | SCAC3 |
| 5271 | PLLL | PRIDEWAY LOGISTICS LLC | | | SCAC4 |
| 5272 | PLLM | PHILLIPS TRANSPORTING | | | SCAC3 |
| 5273 | PLLM | PREMIER LOGISTICS LLC | | | SCAC4 |
| 5274 | PLLN | PELLANDINI TRANSPORTATION INC | | | SCAC3 |
| 5275 | PLLN | PAUL OIL CO INC | | | SCAC4 |
| 5276 | PLLO | PORTILLO TRUCK LINES | | | SCAC3 |
| 5277 | PLLO | PALMER LOGISTICS LLC | | | SCAC4 |
| 5278 | PLLP | PALLET PRODUCTS INC | | | SCAC3 |
| 5279 | PLLQ | PELL TRUCKING CO | | | SCAC3 |
| 5280 | PLLQ | PRECISE LOGISTICS LLC | | | SCAC4 |
| 5281 | PLLR | PAULL, RON TRANSPORTATION INC | | | SCAC3 |
| 5282 | PLLR | PELL FARM | | | SCAC4 |
| 5283 | PLLT | PELL TRUCKING CORP | | | SCAC3 |
| 5284 | PLLT | POLL TRANSPORT INC | | | SCAC4 |
| 5285 | PLLU | POLYNESIA LINE LIMITED | | | PWRC |
| 5286 | PLLU | Polynesia Line | | | RSRV |
| 5287 | PLLU | POLINESIA LINE LTD. | | | SCAC3 |
| 5288 | PLLU | POLYNESIA LINE LTD | | | SCAC4 |
| 5289 | PLLW | POWER LINK LOGISTIC INC | | | SCAC4 |
| 5290 | PLLX | Plymouth & Lincoln R.R. Corp. | 7/2005 (not listed) | | NAKINA |
| 5291 | PLLX | *PIKE LETCHER LAND COMPANY, INC. | | | PWRC |
| 5292 | PLLX | +PLYMOUTH & LINCOLN RAILROAD CORP. | | | PWRC |
| 5293 | PLLX | PLYMOUTH AND LINCOLN RAILROAD CORP | | | SCAC4 |
| 5294 | PLLY | P L LIGHT SYSTEMS CANADA INC | | | SCAC4 |
| 5295 | PLLZ | POLYNESIA LINE LIMITED | | | PWRC |
| 5296 | PLLZ | Polynesia Line | | | RSRV |
| 5297 | PLLZ | POLYNESIA LINE LIMITED | | | SCAC4 |
| 5298 | PLM | Platinum Air Charter Executive 2000 Ltd. | Callsign: Platinum Exec, | GB | AVCODES |
| 5299 | PLM | P.L.M. Helicopters Ltd. | Callsign: Plum, | GB | AVCODES |
| 5300 | PLM | PLM Helicopters Ltd. | Callsign: Plum, | GB | AVCODES |
