List of reporting marks: P

Note: Marks ending in U are for container owners; marks ending in X are not common carriers; marks ending in Z are for trailers without flanged wheels. All other marks are of common-carrier railroads.

P

PACY - Prairie Central Railway
PAE - Peoria & Eastern Railway; Conrail
PAL - Paducah & Louisville Railway
PAM - Pittsburgh, Allegheny & McKees Rocks Railroad
PARX - Pan American Railway Company
PARY - Prairie Trunk Railway
PAS - Pan Am Southern
PAUT - Pennsylvania & Atlantic Railroad; Conrail
PAXX - Passenger Railcar Services Corporation
PBFX - IBP, Inc.; Tyson Foods
PBL - Philadelphia Belt Line Railroad
PBLX - Pillsbury
PBNE - Philadelphia, Bethlehem & New England Railroad
PBR - Patapsco & Back Rivers Railroad
PBRR - Prairie Belt Railroad
PBVR - Port Bienville Railroad
PC - Penn Central; Norfolk Southern
PCA - Penn Central; Norfolk Southern
PCB - Penn Central; Norfolk Southern
PCCX - Peabody Coal Company
PCEX - GE Capital Rail Services
PCFX - Pacific Car & Foundry Company
PCIX - Shippers Car Line; ACF Industries
PCMX - Petro-Chem Marketing Company
PCN - Point Comfort & Northern Railway
PCRC - Panama Canal Railway Company; Kansas City Southern Railway
PCSX - GE Capital Rail Services
PCTX - Pioneer Cement Company of Texas
PCY - Pittsburgh, Chartiers & Youghiogheny Railway
PDQX - Castle Capital Corporation
PE - Pacific Electric Railway; Conrail
PECX - Pekin Energy Company
PENX - Penford Products Company
PEPX - Potomac Electric Power Company
PER - Port Everglades Railway
PF - Pioneer & Fayette Railroad
PFE - Pacific Fruit Express; Union Pacific
PFM - Power, Fluid & Metals
PGDX - Procter & Gamble
PGE - Pacific Great Eastern Railway; British Columbia Railway; Canadian National
PGER - Pacific Great Eastern Railway; British Columbia Railway; Canadian National
PGEX - Portland General Electric Company
PGHX - Trinity Rail Management
PGMX - Procter & Gamble
PGR - Progressive Rail
PHCR - Port Colborne Harbour Railway
PHD - Port Huron & Detroit Railroad; Chessie System; CSX
PHL - Pacific Harbor Line
PI - Paducah & Illinois Railroad
PICK - Pickens Railroad
PINX - Pinnacle Polymers
PJR - Port Jersey Railroad
PLCX - Pullman Leasing Company; GE Capital Rail Services
PLE - Pittsburgh & Lake Erie Railroad; New York Central Railroad; Penn Central; Conrail; CSX (after Conrail breakup)
PLEX - PLM
PLLU - Polynesia Line
PLLZ - Polynesia Line
PLMX - PLM International
PLWX - GE Capital Rail Services
PM - Pere Marquette Railway; Chesapeake & Ohio Railway; Chessie System; CSX
PMLX - Prairie Malt
PMRX - Progress Metal Reclamation Company
PN - Piedmont & Northern Railway; Seaboard Coast Line; CSX
PN - Pennsylvania Northeastern Railroad
PNRW - Piedmont & Northern Railway (division of Patriot Rail Corporation)
PNWR - Portland & Western Railroad
PNWX - PNW Railcars
POHC - Pittsburgh & Ohio Central Railroad
POTB - Port of Tillamook Bay Railroad
PPAX - PCS Phosphate Company
PPCX - American Association of Private Railroad Car Owners
PPGX - PPG Industries
PPHX - PCS Phosphate Company
PPLX - Pennsylvania Power & Light Company
PPNX - PCS Phosphate Company
PPRX - Phillips Petroleum Company
PPU - Peoria & Pekin Union Railway
PRCX - 20th Century Fox
PRGX - ProGold
PRL - Penn Eastern Rail Lines; East Penn Railway
PRLX - Progress Rail Services Corporation
PRMU - Puerto Rican Maritime Shipping Authority
PROX - Procor
PRR - Pennsylvania Railroad; Penn Central; Norfolk Southern
PRRX - Norfolk Southern
PRSL - Pennsylvania-Reading Seashore Lines; Norfolk Southern
PRSX - Progress Rail Services Corporation
PS - Pittsburg & Shawmut Railroad
PSCX - Public Service Company of Colorado
PSIX - Pacific Steel
PSL - Peabody Short Line; Illinois Central Railroad; Canadian National
PSPX - Phillips Petroleum Company
PSR - Pittsburg & Shawmut Railroad
PTM - Portland Terminal Company; Maine Central Railroad; Pan Am Railways
PTEX - Canpotex
PTLX - Pullman Transport Leasing; GE Capital Rail Services
PW - Providence & Worcester Railroad