| 101 | PAAM | PARCEL TANKERS SERVICES INC | | | SCAC3 |
| 102 | PAAM | PARCEL TANKERS SERVICES INC | | | SCAC4 |
| 103 | PAAN | P & A TRANSPORTATION | | | SCAC3 |
| 104 | PAAN | PAYNE, ANTHONY | | | SCAC4 |
| 105 | PAAP | PARR LUMBER CO | | | SCAC4 |
| 106 | PAAQ | PLANTS AND ANIMALS | | | SCAC4 |
| 107 | PAAU | PT JASATAMA KEMASINDO | | | SCAC4 |
| 108 | PAAV | PAN AMERICAN VAN LINES INC | | | SCAC3 |
| 109 | PAAW | PATTON & ASSOCIATES | | | SCAC3 |
| 110 | PAB | Pacific Air Boats Ltd. | Callsign: Air Boats, | CDN | AVCODES |
| 111 | PAB | Silkline Air | Name changed to Parair | TJ | AVCODES |
| 112 | PAB | Parair | Callsign: Parair, Name changed from Silkline Air | TJ | AVCODES |
| 113 | PAB | Pacific Air Boats | | | ICAO1 |
| 114 | PABA | PATS BAGGAGE TRANSFER | | | SCAC3 |
| 115 | PABA | PACIFIC LOG RECOVERY SYSTEMS LTD | | | SCAC4 |
| 116 | PABB | PETERS & BARBARA | | | SCAC3 |
| 117 | PABC | P & B TRUCKING COMPANY | | | SCAC3 |
| 118 | PABC | PACIFIC VOYAGES INC | | | SCAC4 |
| 119 | PABCO | PABCO Transit Inc. | | USA | TRAFFIC |
| 120 | PABF | PAC TRUCKING CO INC | | | SCAC4 |
| 121 | PABH | PATLEE TRANSPORT | | | SCAC4 |
| 122 | PABI | PRECISION AUTOMATION CO INC | | | SCAC4 |
| 123 | PABI | Miejski Zakład Komunikacyjny Pabianice sp. z o.o. | | PL | TRAFFIC |
| 124 | PABJ | P A B JR INC | | | SCAC3 |
| 125 | PABK | P A B TRUCKING CO | | | SCAC3 |
| 126 | PABK | PACBRAKE COMPANY | | | SCAC4 |
| 127 | PABM | PELLETIER, ALBERT THE MOVER INC | | | SCAC3 |
| 128 | PABN | PRAIRIE ADVERTISING LTD | | | SCAC4 |
| 129 | PABO | R & B CARTAGE & WAREHOUSE INC | | | SCAC3 |
| 130 | PABO | PAQUETERIA Y CARGA DEL NORTE | | | SCAC4 |
| 131 | PABP | PANACEA AFTERMARKET CO | | | SCAC4 |
| 132 | PABQ | PACIFIC ATLANTIC REFRIGERATED | | | SCAC4 |
| 133 | PABV | PACIFIC BEVERAGE CO | | | SCAC3 |
| 134 | PABV | PACIFIC INTERNATIONAL LINES (PTE) L | | | SCAC4 |
| 135 | PAC | Polar Air Cargo, Inc. | IATA: PO, Callsign: Polar, IATA Prefix: 403, Name changed to Polar Air Cargo Worldwide, Inc. ICAO Callsign changed from Polar Tiger | USA | AVCODES |
| 136 | PAC | Polar Air Cargo, Inc. | IATA: PO, Callsign: Polar Tiger, IATA Prefix: 403, ICAO Callsign changed to Polar | USA | AVCODES |
| 137 | PAC | Polar Air Cargo Worldwide, Inc. | IATA: PO, Callsign: Polar, IATA Prefix: 403, Name changed from Polar Air Cargo, Inc. ICAO Callsign changed from Polar Tiger | USA | AVCODES |
| 138 | PAC | Polar Air Cargo | IATA: PO | | ICAO1 |
| 139 | PAC | Polar Air Cargo | Real: PAC, PO | USA | TRAFFIC |
| 140 | PACA | PREMIER AIR CARGO SALES & LOGISTICS | | | SCAC4 |
| 141 | PACB | PACIFIC BULK TRANSPORTATION CO | | | SCAC3 |
| 142 | PACB | PACIFIC BULK TRANSPORTATION CO INC | | | SCAC4 |
| 143 | PACD | PACIFIC ATLANTIC COASTAL EXPRESS | | | SCAC3 |
| 144 | PACE | PACE TRANSPORTATION INC | | | SCAC4 |
| 145 | PACE | PACE (Chicago, Ill.) | | USA | TRAFFIC |
| 146 | PACF | PUGLIESE AND COMPANY | | | SCAC4 |
| 147 | PACG | PACIFIC TRANSPORTATION GROUP INC | | | SCAC3 |
| 148 | PACG | PACIFIC GREEN INC | | | SCAC4 |
| 149 | PACH | PRIORITY AIR CHARTER LLC | | | SCAC4 |
| 150 | PACI | PACIFIC CHEMICALS INDUSTRIES | | | PWRC |
| 151 | PACI | PACIFIC SEABRIDGE | | | SCAC3 |
| 152 | PACI | PACIFIC ENDEAVOR SHIPPING INC | | | SCAC4 |
| 153 | PACJ | P A C OCEAN LINES | | | SCAC4 |
| 154 | PACN | PACIFIC INTERNATIONAL FREIGHT SYSTE | | | SCAC3 |
| 155 | PACO | PARCEL DELIVERY SERVICE | | | SCAC3 |
| 156 | PACP | PACIFIC AGRI-PRODUCTS INC | | | SCAC3 |
| 157 | PACQ | PACIFIC EXPRESS | | | SCAC3 |
| 158 | PACS | PACIFIC STORAGE COMPANY | | | SCAC3 |
| 159 | PACS | PACIFIC STORAGE COMPANY | | | SCAC4 |
| 160 | PACSA | Pacific Sky Aviation | | CDN | TRAFFIC |
| 161 | PACU | XPO LOGISTICS | | USA | BIC |
| 162 | PACU | Pacer International | | | RSRV |
| 163 | PACU | PACE LINE (PACIFIC AMERICA CONTAINE | | | SCAC3 |
| 164 | PACU | PACER STACKTRAIN | | | SCAC4 |
| 165 | PACV | PACIFIC VAN & STORAGE CO INC | | | SCAC3 |
| 166 | PACV | PIEDMONT AVIATION COMPONENT | | | SCAC4 |
| 167 | PACW | PAC-EX | | | SCAC4 |
| 168 | PACX | Plasser American Corp. | 1/1994-7/2005 (not listed) | | NAKINA |
| 169 | PACX | Pacific Supply Cooperative | added 10/1974; 1/1975; eliminated 1/1978 | | NAKINA |
| 170 | PACX | Pacific Supply Cooperative | added 10/74; 1/75; eliminated 1/78 | | NRHS |
| 171 | PACX | Plasser American Corp. | 1/94-7/2000 | | NRHS |
| 172 | PACX | PLASSER AMERICAN CORP. | | | PWRC |
| 173 | PACX | Plasser American Corporation | | | RSRV |
| 174 | PACX | PLASSER AMERICAN CORPORATION | | | SCAC4 |
| 175 | PACY | Prairie Central Ry. Co. | added 10/1981; eliminated 1/1986 | | NAKINA |
| 176 | PACY | Prairie Central Ry. Co. | added 10/81; eliminated 1/86 | | NRHS |
| 177 | PACY | PRAIRIE CENTRAL RAILWAY CO. | | | PWRC |
| 178 | PACY | Prairie Central Railway | | | RSRV |
| 179 | PACZ | PAPER CALMENSON & CO. | | | PWRC |
| 180 | PAD | Professional Express Courier Service, Inc. | Callsign: Air Professional, | USA | AVCODES |
| 181 | PAD | Professional Express Courier Service | | | ICAO1 |
| 182 | PADA | Padarn Railway | | GB | TRAFFIC |
| 183 | PADB | PADULA BROS INC | | | SCAC3 |
| 184 | PADD | PADDED WAGON INC, THE | | | SCAC4 |
| 185 | PADE | PAR DELIVERY SERVICE INC | | | SCAC3 |
| 186 | PADF | PADELFORD PACKET BOAT CO INC | | | SCAC3 |
| 187 | PADF | PALMETTO TRANSPORTATION DIVISION IN | | | SCAC4 |
| 188 | PADG | PADGETT, GORDON A TRUCKING INC | | | SCAC3 |
| 189 | PADH | PADO COMPANY | | | SCAC3 |
| 190 | PADH | P A N MANUFACTURING | | | SCAC4 |
| 191 | PADI | PADDISON TRUCK LINES INC | | | SCAC3 |
| 192 | PADI | PADILLA REFRIGERADOS | | | SCAC4 |
| 193 | PADM | P A D | | | SCAC3 |
| 194 | PADN | PACER DIVISION (DIV OF PACIFIC MOTO | | | SCAC3 |
| 195 | PADN | PACER TRANSPORT INC | | | SCAC4 |
| 196 | PADO | P D Q DELIVERY SERVICE | | | SCAC3 |
| 197 | PADP | PARCEL DISPATCH, INC | | | SCAC3 |
| 198 | PADQ | PADILLAS MOVING & STORAGE | | | SCAC3 |
| 199 | PADR | PADRINO COMPANY S A | | | SCAC3 |
| 200 | PADR | POSH PAWZ | | | SCAC4 |
