| 1 | PCE | Piedmont Aviation Services, Inc. d/b/a Pace Airlines | Callsign: Pace, Name changed to Pace Airlines, Inc w.e.f. December 2002. | USA | AVCODES |
| 2 | PCE | Pacific East Air, Inc. | IATA: 6P, | USA | AVCODES |
| 3 | PCE | Pace Airlines, Inc | IATA: Y5, Callsign: Pace, Established in January 1996. Ceased operations September 2009. Name changed from Piedmont Aviation Services, Inc. d/b/a Pace Airlines w.e.f December 2002. | USA | AVCODES |
| 4 | PCE | Pace Airlines | IATA: Y5 | | ICAO1 |
| 5 | PCE | Prestige Continental Express | | CH | TRAFFIC |
| 6 | PCEA | PACE AIR FREIGHT | | | SCAC3 |
| 7 | PCEA | PACE AIR FREIGHT | | | SCAC4 |
| 8 | PCEB | PCE | | | SCAC3 |
| 9 | PCEC | PRAIRIE LAKE LOGISTICS | | | SCAC4 |
| 10 | PCED | P C EXPRESS DELIVERY INC | | | SCAC4 |
| 11 | PCEE | PACON EXPRESS INC. | | | SCAC3 |
| 12 | PCEF | PACIFIC EAGLE FREIGHT SYSTEMS INC | | | SCAC3 |
| 13 | PCEG | PIERSON, RICHARD E CONSTRUCTION CO | | | SCAC4 |
| 14 | PCEI | PIERSON, C E TRUCKING | | | SCAC3 |
| 15 | PCEI | PEACE TRUCKING INC | | | SCAC4 |
| 16 | PCEK | PACESETTER TRUCKING CO | | | SCAC3 |
| 17 | PCEK | PACESETTER TRUCKING CO | | | SCAC4 |
| 18 | PCEM | PRESIDENT CONTAINER LINE INC | | | SCAC4 |
| 19 | PCEN | PRIVATE COACH ENTERPRISES INC | | | SCAC3 |
| 20 | PCEO | PRICE, GARY | | | SCAC3 |
| 21 | PCEO | PACIFIC COURIER SERVICES WASHINGTON | | | SCAC4 |
| 22 | PCEP | PACIFIC COASTAL EXPRESS | | | SCAC3 |
| 23 | PCEQ | PRICE, HENRY HAULING | | | SCAC3 |
| 24 | PCEQ | PRO-CHOP EQUIPMENT INC | | | SCAC4 |
| 25 | PCER | PORT CITIES EXPRESS INC | | | SCAC3 |
| 26 | PCER | PERFECT CIRCLE INC | | | SCAC4 |
| 27 | PCES | PRINCE TRANSPORTATION SERVICES INC | | | SCAC3 |
| 28 | PCES | PREMIER LOGISTICS INC | | | SCAC4 |
| 29 | PCET | PROCESSING TRANSPORTATION INC | | | SCAC3 |
| 30 | PCET | PLANNING CENTRE, THE | | | SCAC4 |
| 31 | PCEV | PRIORITY COURIER | | | SCAC4 |
| 32 | PCEW | PETROSPEC ENGINEERING LTD | | | SCAC4 |
| 33 | PCEX | Petromax Chemical Exchange, Inc. | added 7/1980; eliminated 1/1981 | | NAKINA |
| 34 | PCEX | Petromax Chemical Exchange, Inc. | added 7/80; eliminated 1/81 | | NRHS |
| 35 | PCEX | *PETROMAX CHEMICAL EXCHANGE, INC. | | | PWRC |
| 36 | PCEX | *GE RAIL SERVICES | | | PWRC |
| 37 | PCEX | Petromax Chemical Exchange (GE Rail Services) | | | RSRV |