List of reporting marks: P

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List of North American reporting marks

* A
* B
* C
* D
* E
* F
* G
* H
* I
* J
* K
* L
* M
* N
* O
* P
* Q
* R
* S
* T
* U
* V
* W
* X
* Y
* Z

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[edit]

* PACY \- Prairie Central Railway
* PAE \- Peoria and Eastern Railway; Conrail
* PAL \- Paducah and Louisville Railway
* PAM \- Pittsburgh, Allegheny and McKees Rocks Railroad
* PARX \- Pan American Railway Company
* PARY \- Prairie Trunk Railway
* PAS \- Pan Am Southern
* PAUT \- Pennsylvania and Atlantic Railroad; Conrail
* PBFX \- IBP, Inc.; Tyson Foods
* PBL \- Philadelphia Belt Line Railroad
* PBLX \- Pillsbury
* PBNE \- Philadelphia, Bethlehem and New England Railroad
* PBR \- Patapsco and 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 Rail Services
* PCFX \- Pacific Car and Foundry Company
* PCIX \- Shippers Car Line; ACF Industries
* PCMX \- Petro-Chem Marketing Company
* PCN \- Point Comfort and Northern Railway
* PCRC \- Panama Canal Railway Company; Kansas City Southern Railway
* PCSX \- GE Rail Services
* PCTX \- Pioneer Cement Company of Texas
* PCY \- Pittsburgh, Chartiers and 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 and Fayette Railroad
* PFE \- Pacific Fruit Express; Union Pacific Railroad
* PFM \- Power, Fluid & Metals
* PGDX \- Procter and Gamble Manufacturing Company
* PGE \- Pacific Great Eastern Railway; British Columbia Railway; Canadian National Railway
* PGER \- Pacific Great Eastern Railway; British Columbia Railway; Canadian National Railway
* PGEX \- Portland General Electric Company
* PGHX \- Trinity Rail Management, Inc.
* PGMX \- Procter and Gamble Manufacturing Company
* PGR \- Progressive Rail
* PHCR \- Port Colborne Harbour Railway
* PHD \- Port Huron and Detroit Railroad; Chessie System; CSX Transportation
* PHL \- Pacific Harbor Line
* PI \- Paducah and Illinois Railroad
* PICK \- Pickens Railroad
* PJR \- Port Jersey Railroad
* PLCX \- Pullman Leasing Company; GE Capital Railcar Services
* PLE \- Pittsburgh and Lake Erie Railroad; New York Central Railroad; Penn Central; Conrail; CSX Transportation (after Conrail breakup)
* PLEX \- PLM, Inc.
* PLLU \- Polynesia Line
* PLLZ \- Polynesia Line
* PLMX \- PLM International
* PLWX \- GE Capital Railcar Services
* PM \- Pere Marquette Railway; Chesapeake and Ohio Railway; Chessie System; CSX Transportation
* PMLX \- Prairie Malt, Ltd.

* PMRX \- Progress Metal Reclamation Company

* PN \- Piedmont and Northern Railway; Seaboard Coast Line; CSX Transportation
* PN \- Pennsylvania Northeastern Railroad
* PNRW \- Piedmont and Northern Railway (division of Patriot Rail Corporation)
* PNWR \- Portland and Western Railroad
* POHC \- Pittsburgh and Ohio Central Railroad
* POTB \- Port of Tillamook Bay Railroad
* PPAX \- PCS Phosphate Company
* PPCX \- American Association of Private Railroad Car Owners
* PPGX \- PPG Industries, Inc.
* PPHX \- PCS Phosphate Company
* PPLX \- Pennsylvania Power and Light Company
* PPNX \- PCS Phosphate Company
* PPRX \- Phillips Petroleum Company
* PPU \- Peoria and Pekin Union Railway
* PRCX \- 20th Century Fox
* PRGX \- ProGold, LLC
* PRL \- Penn Eastern Rail Lines, Inc.; 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 and Shawmut Railroad
* PSCX \- Public Service Company of Colorado
* PSL \- Peabody Short Line; Illinois Central Railroad; Canadian National Railways
* PSPX \- Phillips Petroleum Company
* PSR \- Pittsburg and Shawmut Railroad
* PTM \- Portland Terminal Company; Maine Central Railroad; Pan Am Railways
* PTEX \- Canpotex
* PTLX \- Pullman Transport Leasing; GE Rail Services
* PVVR \- Portland, Vancouver and Vitebsk Seaway Railroad; Spokane, Portland and Seattle Railway; Burlington Northern Railroad
* PW \- Providence and Worcester Railroad

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