| 8001 | PRHK | PARRISH TRUCKING INC | | | SCAC3 |
| 8002 | PRHK | PARRISH TRUCKING INC | | | SCAC4 |
| 8003 | PRHL | PRETTYMAN, HAROLD LEROY | | | SCAC3 |
| 8004 | PRHL | PACIFIC RADIATOR MFG LTD | | | SCAC4 |
| 8005 | PRHN | PARRISH TRANSPORTATION | | | SCAC3 |
| 8006 | PRHO | PROTHO EXPRESS INC | | | SCAC3 |
| 8007 | PRHO | PREMIER HORTICULTURE | | | SCAC4 |
| 8008 | PRHP | PRO-TECH | | | SCAC4 |
| 8009 | PRHQ | PIERSON, RICHARD E MATERIALS CORP | | | SCAC4 |
| 8010 | PRHS | PACIFIC RESOURCES INC | | | SCAC3 |
| 8011 | PRHT | PRUITT, H TRUCKING INC | | | SCAC3 |
| 8012 | PRI | Aloha Islandair, Inc. | IATA: WP, IATA Prefix: 347, Name changed to Hawaii Island Air. Inc d/b/a Island Air w.e.f. 11 May 2004. | USA | AVCODES |
| 8013 | PRI | Hawaii Island Air. Inc d/b/a Island Air | IATA Prefix: 347, Name changed from Aloha Islandair, Inc. | USA | AVCODES |
| 8014 | PRI | Primera Air Scandinavia A/S | IATA: P6, Callsign: Primera, IATA Designator changed to PF | DK | AVCODES |
| 8015 | PRI | Primera Air Scandinavia A/S | IATA: PF, Callsign: Primera, Ceased operations on 01 October 2018. IATA Designator changed from P6 | DK | AVCODES |
| 8016 | PRI | Aerotransportes Privados | | | ICAO1 |
| 8017 | PRI | Port Railroad, Inc. | added 7/1994; eliminated 7/1996 | | NAKINA |
| 8018 | PRI | Port Railroad, Inc. | added 7/94; eliminated 7/96 | | NRHS |
| 8019 | PRI | PORT RAILROAD, INC. | | | PWRC |
| 8020 | PRIA | PRSD LOGISTICS | | | SCAC4 |
| 8021 | PRIB | PRICE, LYNDON | | | SCAC3 |
| 8022 | PRIC | PRICE TRUCK LINE, INC | | | SCAC3 |
| 8023 | PRIE | PRICE TRANSPORTATION | | | SCAC3 |
| 8024 | PRIF | PRIORITY AIR FREIGHT INC | | | SCAC3 |
| 8025 | PRIF | PRITCHETTS | | | SCAC4 |
| 8026 | PRIG | PRESTIGE DELIVERIES INC | | | SCAC3 |
| 8027 | PRIH | PRITCHETT, MARVIN H | | | SCAC3 |
| 8028 | PRIH | PRITCHETT TRUCKING INC | | | SCAC4 |
| 8029 | PRII | PREMIER LIMO | | | SCAC3 |
| 8030 | PRII | PRO RISING INTERNATIONAL LTD | | | SCAC4 |
| 8031 | PRIJ | PRIME, INC. | | | SCAC3 |
| 8032 | PRIJ | PRIME INC | | | SCAC4 |
| 8033 | PRIK | PRICE TRUCKING INC | | | SCAC4 |
| 8034 | PRIM | PRIME SHIPPING INTERNATIONAL INC | | | SCAC4 |
| 8035 | PRIN | PRINS, WILLIAM A AND SON | | | SCAC3 |
| 8036 | PRIN | PRINS, LEROY TRUCKING INC | | | SCAC4 |
| 8037 | PRINCE | Prince Omnibus | | GB | TRAFFIC |
| 8038 | PRINCEM | Prince Marshal | | GB | TRAFFIC |
| 8039 | PRIO | PRIMO TRUCKING INC | | | SCAC3 |
| 8040 | PRIP | PUERTO RICO INTERNATIONAL AIRPORT I | | | SCAC3 |
| 8041 | PRIP | PR1 MOTORSPORTS INC | | | SCAC4 |
| 8042 | PRIQ | PRAIRIE TRANSPORTATION INC | | | SCAC3 |
| 8043 | PRIR | PRAIRIE TRANSPORT | | | SCAC4 |
| 8044 | PRIU | RETIRED 05-27-93 ATP | | | PWRC |
| 8045 | PRIV | PRIVITERA, SAM | | | SCAC3 |
| 8046 | PRIW | PRAIRIEWOOD INC | | | SCAC3 |
| 8047 | PRIX | PRO RAIL INC. | | | PWRC |
| 8048 | PRIZ | PRESTON INDUSTRY | | | PWRC |
| 8049 | PRJ | Aero Servicios Pro-Bajio, S.A. de C.V. | Callsign: Probajio, | MEX | AVCODES |
| 8050 | PRJ | Pronair Airlines | Established in 2007. Ceased operations in 2009. | E | AVCODES |
| 8051 | PRJA | PORRET, RONALD JAMES | | | SCAC4 |
| 8052 | PRJD | PROJECT DOORS & MOULDINGS LTD | | | SCAC4 |
| 8053 | PRJF | PARTEX | | | SCAC3 |
| 8054 | PRJH | PARROTT, JOHN | | | SCAC3 |
| 8055 | PRJK | PRICE, JACK REFRIGERATED TRUCKING | | | SCAC3 |
| 8056 | PRJQ | PRINCE TRUCKING INC | | | SCAC3 |
| 8057 | PRJR | PROSTKO, JOSEPH R | | | SCAC3 |
| 8058 | PRJS | PROTORSION | | | SCAC4 |
| 8059 | PRJT | PARKER, JAMES C TRUCKING CO | | | SCAC3 |
| 8060 | PRJU | PROJECT LINES FZE | | UAE | BIC |
| 8061 | PRJW | PRICE, J W | | | SCAC3 |
| 8062 | PRK | Swallow Aviacion, S.L. | Callsign: Paraca, | E | AVCODES |
| 8063 | PRKA | PARK AVENUE STORAGE CORPORATION | | | SCAC3 |
| 8064 | PRKA | PARK AVENUE STORAGE CORPORATION | | | SCAC4 |
| 8065 | PRKB | PARKER BROTHERS TRUCKING CORPORATIO | | | SCAC3 |
| 8066 | PRKC | PARK RIDGE TRANSPORT INC | | | SCAC3 |
| 8067 | PRKC | PARK RIDGE TRANSPORT INC | | | SCAC4 |
| 8068 | PRKD | PRAIRIE | | | SCAC4 |
| 8069 | PRKE | PARKER TRANSFER AND STORAGE, INC | | | SCAC3 |
| 8070 | PRKG | PRO TRUCKING INC | | | SCAC4 |
| 8071 | PRKH | P & R TRUCKING | | | SCAC3 |
| 8072 | PRKH | P & R TRUCKING INC | | | SCAC4 |
| 8073 | PRKI | PARKS MOVING & STORAGE INC | | | SCAC3 |
| 8074 | PRKI | P & R TRUCKING | | | SCAC4 |
| 8075 | PRKII | Przedsiębiorstwa Robót Kolejowych i Inżynieryjnych | | PL | TRAFFIC |
| 8076 | PRKJ | PRM TRUCKING | | | SCAC4 |
| 8077 | PRKKR | Przedsiębiorstwo Robót Komunikacyjnych w Krakowie S.A. | | PL | VKM |
| 8078 | PRKL | PROGRESSIVE TRUCK LINES INC | | | SCAC3 |
| 8079 | PRKL | PERKINS LOGISTICS LLC | | | SCAC4 |
| 8080 | PRKM | PARK MOTOR CARRIER, INC | | | SCAC3 |
| 8081 | PRKM | PARK MOTOR CARRIER INC | | | SCAC4 |
| 8082 | PRKN | PARKER TRANSPORT LLC | | | SCAC4 |
| 8083 | PRKO | PARKER OIL COMPANY | | | SCAC4 |
| 8084 | PRKQ | PARK TRANSFER & STORAGE CO | | | SCAC3 |
| 8085 | PRKQ | PERO TRUCKING INC | | | SCAC4 |
| 8086 | PRKR | PERK TRANSPORTATION INC | | | SCAC3 |
| 8087 | PRKS | PARKS MOVING & STORAGE INC | | | SCAC3 |
| 8088 | PRKS | PARKS MOVING & STORAGE INC | | | SCAC4 |
| 8089 | PRKT | PRICKETT TRANSPORTATION CO | | | SCAC3 |
| 8090 | PRKU | PROTANK LOGISTICS CO LTD | | RC | BIC |
| 8091 | PRKU | PROTANK LOGISTICS CO LTD | | | SCAC4 |
| 8092 | PRKV | PERKINS, VACHEL TRUCKING LLC | | | SCAC4 |
| 8093 | PRKW | PARKER TRUCKING | | | SCAC4 |
| 8094 | PRKWR | Przedsiębiorstwo Robót Kolejowych i Inżynieryjnych S.A. | | PL | VKM |
| 8095 | PRKX | The P. & P. Car Line, Inc. | 7/1935-10/1957; eliminated 10/1958 | | NAKINA |
| 8096 | PRKX | The Park & Pollard Co. | 7/1930-7/1932 | | NAKINA |
| 8097 | PRKX | The P. & P. Car Line, Inc. | 4/38-10/57; eliminated 10/58 | | NRHS |
| 8098 | PRKX | P. & P. CAR LINE, INC. [PARK & POLLARD CO.] | | | PWRC |
| 8099 | PRKY | PURKEY TRUCKING | | | SCAC3 |
| 8100 | PRL | Pearl Air Pvt. Ltd. | Callsign: Pearl Line, | PK | AVCODES |
