| 8101 | PRL | Pearl Air | | | ICAO1 |
| 8102 | PRL | East Penn Railroad LLC | added 10/2007 | | NAKINA |
| 8103 | PRL | Penn Eastern Rail Lines, Inc. | added 4/1998; 7/2000-7/2005; eliminated 10/2007 | | NAKINA |
| 8104 | PRL | Penn Eastern Rail Lines, Inc. | added 4/98; 7/2000 | | NRHS |
| 8105 | PRL | EAST PENN RAILWAY [PENN EASTERN RAIL LINES INC.] | | | PWRC |
| 8106 | PRL | Penn Eastern Rail Lines (East Penn Railway) | | | RSRV |
| 8107 | PRL | PENN EASTERN RAIL LINES INC | | | SCAC4 |
| 8108 | PRL | Penn Eastern Rail Lines, Inc. | | USA | TRAFFIC |
| 8109 | PRLA | PUROLATOR COURIER LTD | | | SCAC3 |
| 8110 | PRLA | PUROLATOR COURIER LTD | | | SCAC4 |
| 8111 | PRLB | PRICE, LAMAR B TRUCKING | | | SCAC3 |
| 8112 | PRLB | PRIME LUBE INC | | | SCAC4 |
| 8113 | PRLC | PARRISH LEASING CO | | | SCAC3 |
| 8114 | PRLC | PARRISH LEASING CO | | | SCAC4 |
| 8115 | PRLD | PARMLEY, DAVID L | | | SCAC3 |
| 8116 | PRLD | PEDREGON RACING LLC | | | SCAC4 |
| 8117 | PRLE | PEERLESS CLOTHING INC | | | SCAC4 |
| 8118 | PRLG | PRO TRANSPORT AND LEASING INC | | | SCAC3 |
| 8119 | PRLI | PRAIRIE LINES INC | | | SCAC3 |
| 8120 | PRLI | PATRIOT LINES | | | SCAC4 |
| 8121 | PRLJ | PRENTICE, LEE J | | | SCAC3 |
| 8122 | PRLJ | PEARL TRUCKING LLC | | | SCAC4 |
| 8123 | PRLK | PEARL TRUCKING | | | SCAC3 |
| 8124 | PRLK | PEARL TRUCKING | | | SCAC4 |
| 8125 | PRLL | PEARL K/S | | | SCAC3 |
| 8126 | PRLL | PRECISION ROLLS INC | | | SCAC4 |
| 8127 | PRLM | PARR LUMBER CO | | | SCAC3 |
| 8128 | PRLN | P & R OIL CO | | | SCAC4 |
| 8129 | PRLO | PRELL OHIO | | | SCAC3 |
| 8130 | PRLP | PACIFIC ROLLER POWER CORPORATION | | | SCAC3 |
| 8131 | PRLQ | PORT LIONS OIL COMPANY | | | SCAC3 |
| 8132 | PRLQ | PEARLMAR LIMITED | | | SCAC4 |
| 8133 | PRLR | PEERLESS ENTERPRISE OF EVANSTON | | | SCAC3 |
| 8134 | PRLR | PROLOG INTERNATIONAL INC (NOVA MARI | | | SCAC4 |
| 8135 | PRLS | PEERLESS TRUCKING COMPANY, 4H Mountain Valley Express, INC | | | SCAC3 |
| 8136 | PRLS | PEERLESS TRUCKING COMPANY | | | SCAC4 |
| 8137 | PRLT | PERRAULT, WILLARD | | | SCAC3 |
| 8138 | PRLT | PRIME LINE TRANSPORTATION INC | | | SCAC4 |
| 8139 | PRLU | TIANJIN PLC ENTERPRISE CO., LTD. | | PRC | BIC |
| 8140 | PRLV | PROVINCIAL VAN LINES LLC | | | SCAC4 |
| 8141 | PRLW | PRELLWITZ TRUCKING | | | SCAC3 |
| 8142 | PRLW | PRIDE LOGISTICS INC | | | SCAC4 |
| 8143 | PRLW | Pennsylvania Railroad Lines West | | USA | TRAFFIC |
| 8144 | PRLX | Progress Rail Services Corp. | added 4/2008 | | NAKINA |
| 8145 | PRLX | Private Rail Ltd. | 1/1994-7/2005 (not listed) | | NAKINA |
| 8146 | PRLX | Priebe Refrigerator Line (North Western Refrigerator Line Co.) | 7/1935 | | NAKINA |
| 8147 | PRLX | Priebe Refrigerator Line | 7/1932 | | NAKINA |
| 8148 | PRLX | Private Rail Ltd. | 1/94-7/2000 | | NRHS |
| 8149 | PRLX | *PRIEBE REFRIGERATOR LINE | | | PWRC |
| 8150 | PRLX | *PRIVATE RAIL LIMITED | | | PWRC |
| 8151 | PRLX | +PROGRESS RAIL SERVICES CORP. | | | PWRC |
| 8152 | PRLX | Progress Rail Services Corporation | | | RSRV |
| 8153 | PRLX | PROGRESS RAIL SERVICES CORPORATION | | | SCAC4 |
| 8154 | PRLY | PAYNE, RICHARD L | | | SCAC3 |
| 8155 | PRLY | PRESLEY, S L | | | SCAC4 |
| 8156 | PRM | Prime Air, Inc. | Callsign: Prime Air, | USA | AVCODES |
| 8157 | PRM | Prime Air | | | ICAO1 |
| 8158 | PRM | PORTOLA RAILWAY MUSEUM | | | PWRC |
| 8159 | PRMA | PARMA LUMBER CO-PARMA TRANSFER CO | | | SCAC3 |
| 8160 | PRMB | PARAMOUNT BUILDING PRODUCTS | | | SCAC4 |
| 8161 | PRMC | (PRMU) PUERTO RICAN MARITIME SHIPPING AUTHORITY | | | PWRC |
| 8162 | PRMC | PUERTO RICO MARITIME SHIPPING | | | SCAC3 |
| 8163 | PRMC | PROMPT SHIPPERS INC | | | SCAC4 |
| 8164 | PRMD | PRESTIGE MESSENGER SERVICE INC | | | SCAC3 |
| 8165 | PRMD | PREMUDA SPA | | | SCAC4 |
| 8166 | PRME | PARMA MOVERS INC | | | SCAC3 |
| 8167 | PRMF | PREFERRED MOTOR FREIGHT, INC | | | SCAC3 |
| 8168 | PRMG | PRONTO MOVING SERVICE | | | SCAC3 |
| 8169 | PRMG | PREMIER LOGISTICS BROKERAGE | | | SCAC4 |
| 8170 | PRMI | PERMANENTE TRUCKING SERVICE INC | | | SCAC3 |
| 8171 | PRMI | PRIME TRANS INC | | | SCAC4 |
| 8172 | PRMK | PACIFIC RIM EQUIPMENT INC | | | SCAC4 |
| 8173 | PRML | PERILLO MOTOR LINES INC | | | SCAC3 |
| 8174 | PRML | PRIME LOGISTICS (DIVISION OF PRIME | | | SCAC4 |
| 8175 | PRMM | (PRMU) PUERTO RICAN MARITIME SHIPPING AUTHORITY | | | PWRC |
| 8176 | PRMM | PRMMI TRUCKING INC | | | SCAC3 |
| 8177 | PRMM | PREMIUM TRUCKING LIMITED | | | SCAC4 |
| 8178 | PRMN | PARAMOUNT MOVERS, INC | | | SCAC3 |
| 8179 | PRMN | PRIME NAVIGATION CO LTD | | | SCAC4 |
| 8180 | PRMO | PYRAMID MOTOR LINES INC | | | SCAC3 |
| 8181 | PRMO | PRIMO BEDDING COMPANY INC | | | SCAC4 |
| 8182 | PRMQ | PEERMAN TRANSFER CO | | | SCAC3 |
| 8183 | PRMR | PARMENTER, RON MOTORS | | | SCAC4 |
| 8184 | PRMS | PRATT MOVING & STORAGE INC | | | SCAC3 |
| 8185 | PRMS | PREMIER TRANSFER AND STORAGE INC | | | SCAC4 |
| 8186 | PRMT | PARAMOUNT HAULING CO INC | | | SCAC3 |
| 8187 | PRMT | PARAMOUNT TRANSPORTATION LOGISTICS | | | SCAC4 |
| 8188 | PRMU | PARAMAR S.A. | | PY | BIC |
| 8189 | PRMU | PUERTO RICAN MARITIME SHIPPING AUTHORITY | | | PWRC |
| 8190 | PRMU | Puerto Rican Maritime Shipping Authority | | | RSRV |
| 8191 | PRMU | PUERTO RICAN MARITIME | | | SCAC3 |
| 8192 | PRMU | PUERTO RICO MARINE MANAGEMENT, INC | | | SCAC4 |
| 8193 | PRMV | PARK ROAD MOVING AND TRANSFER CO | | | SCAC3 |
| 8194 | PRMW | PRESTON MOVING & STORAGE LIMITED | | | SCAC3 |
| 8195 | PRMX | PRAIRIE MINES & ROYALITY LTD | | | SCAC4 |
| 8196 | PRMY | PUERTO RICO MOTOR COACH | | | SCAC3 |
| 8197 | PRMY | PUERTO RICO MOTOR COACH | | | SCAC4 |
| 8198 | PRMZ | (PRMU) PUERTO RICAN MARITIME SHIPPING AUTHORITY | | | PWRC |
| 8199 | PRMZ | Puerto Rican Maritime Shipping Authority | | | RSRV |
| 8200 | PRMZ | PUERTO RICO MARITIME SHIPPING | | | SCAC3 |
