| 1 | PLC | Police Aviation Services Ltd. | Callsign: Police, Founded on 17 September 1984. Name changed to Specialist Aviation Services Ltd. w.e.f. 01 June 2015. Police Aviation Services Ltd. | GB | AVCODES |
| 2 | PLC | Specialist Aviation Services Ltd. | Callsign: Special, Name changed from Police Aviation Services Ltd. w.e.f. 01 June 2015. | GB | AVCODES |
| 3 | PLC | Police Aviation Services | | | ICAO1 |
| 4 | PLCA | PIGGY-BACK SHIPPERS ASSOCIATION | | | SCAC3 |
| 5 | PLCA | PALM COAST | | | SCAC4 |
| 6 | PLCB | PEARL INC | | | SCAC3 |
| 7 | PLCC | PAULS CARTAGE INC | | | SCAC3 |
| 8 | PLCE | PALACE TANKERS INC. | | | SCAC3 |
| 9 | PLCF | PRIME LOGISTICS CORP | | | SCAC4 |
| 10 | PLCH | PAYLESS CASHWAY INC | | | SCAC3 |
| 11 | PLCI | PELLCO TRUCKING INC | | | SCAC3 |
| 12 | PLCK | PALCO TRUCKING INC | | | SCAC3 |
| 13 | PLCL | PALMER, C L TRUCKING INC | | | SCAC3 |
| 14 | PLCL | P L C TRANSPORTATION LLC | | | SCAC4 |
| 15 | PLCM | PLACE MACHINE CORP | | | SCAC3 |
| 16 | PLCN | PELICAN TRUCK LINE INC | | | SCAC3 |
| 17 | PLCO | PINSPOTTER LEASING CORP | | | SCAC3 |
| 18 | PLCO | POIRIER, LUC TRANSPORT ENR | | | SCAC4 |
| 19 | PLCP | PILCHS PETROLEUM CORPORATION | | | SCAC3 |
| 20 | PLCQ | PREFERRED LOAD CARRIERS LC | | | SCAC4 |
| 21 | PLCR | PLACER TRUCKING | | | SCAC3 |
| 22 | PLCR | PLANE CARGO INC | | | SCAC4 |
| 23 | PLCS | PALLET CONSULTANTS CORP | | | SCAC4 |
| 24 | PLCU | PLCS INTERNATIONAL | | NL | BIC |
| 25 | PLCV | PANTOS LOGISTICS CANADA INC | | | SCAC4 |
| 26 | PLCW | PLUNKARD, C W INC | | | SCAC3 |
| 27 | PLCW | PROVINCIAL SIGN SYSTEMS | | | SCAC4 |
| 28 | PLCX | General Electric Rail Services Corp. | added 1/2000; 7/2000-7/2005 | | NAKINA |
| 29 | PLCX | General Electric Railcar Services Corp. | added 10/1992; 1/1994; eliminated 1/2000 | | NAKINA |
| 30 | PLCX | Pullman Leasing Co. | added 4/1981; eliminated 1/1990 | | NAKINA |
| 31 | PLCX | Itel Rail Corp. | added 1/1990; eliminated 10/1992 | | NAKINA |
| 32 | PLCX | Pullman Leasing Co., a Subsidiary of Pullman Inc. | added 1/1976; 1/1980; eliminated 4/1981 | | NAKINA |
| 33 | PLCX | Plastics Division, Allied Chemical Corp. | added 4/1961; 4/1961; eliminated 7/1964 | | NAKINA |
| 34 | PLCX | Plastics and Coal Chemicals Division, Allied Chemical Corp. | added 10/1958; eliminated 4/1961 | | NAKINA |
| 35 | PLCX | Plastics and Coal Chemicals Division, Allied Chemical Corp. | added 10/58; eliminated 4/61 | | NRHS |
| 36 | PLCX | Plastics Division, Allied Chemical Corp. | added 4/61; 4/61; eliminated 7/64 | | NRHS |
| 37 | PLCX | Pullman Leasing Co., a Subsidiary of Pullman Inc. | 1/80; eliminated 4/81 | | NRHS |
| 38 | PLCX | Pullman Leasing Co. | added 4/81; eliminated 1/90 | | NRHS |
| 39 | PLCX | Itel Rail Corp. | added 1/90; eliminated 10/92 | | NRHS |
| 40 | PLCX | General Electric Railcar Services Corp. | added 10/92; 1/94; eliminated 1/2000 | | NRHS |
| 41 | PLCX | General Electric Rail Services Corp. | added 1/2000; 7/2000 | | NRHS |
| 42 | PLCX | *PLASTICS DIV., ALLIED CHEMICAL CORP. | | | PWRC |
| 43 | PLCX | +(NATX) GENERAL ELECTRIC RAIL SERVICES CORP. [ITEL RAIL CORP.; PULLMAN LEASING CO.] | | | PWRC |
| 44 | PLCX | PORT OF LAKE CHARLES | | | PWRC |
| 45 | PLCX | Pullman Leasing (GE Capital Railcar Services) | | | RSRV |
| 46 | PLCX | GENERAL ELECTRIC RAILCAR SERVICES C | | | SCAC4 |
| 47 | PLCX | General Electric Rail Services Corp. | | USA | TRAFFIC |
| 48 | PLCY | PEPSI LOGISTICS COMPANY INC | | | SCAC4 |
| 49 | PLCZ | POTLACH LUMBER CO. | | | PWRC |
