| Home | Reporting Marks | Date | |||
| Updated | Email Suggestions/Corrections | ||||
| AA | Ann Arbor | ||||
| AAR | Alaska Railroad | ||||
| AC | Algoma Central | ||||
| ACIS | Algoma Central | ||||
| ACJR | Ashtabula Carson Jefferson | ||||
| ACL | CSX former Atlantic Coast Line | ||||
| ACWR | Aberdeen Carolina & Western | ||||
| ACY | Akron Canton & Yongstown (Norfolk Southern) | ||||
| ADBF | Adrian & Blissfield | ||||
| ADN | Ashley Drew & Northern | ||||
| AG | Abervill Grimes | ||||
| AGLF | Atlantic & Gulf | ||||
| AGR | Alabama Gulf Coast | ||||
| AHW | Ahnapee & Western | ||||
| AL | Almanor Railroad Company | ||||
| ALM | Arkansas Louisiana & Mississippi | ||||
| ALQS | Aliquippa & Southern | ||||
| AM | Arkansas & Missouri | ||||
| AMC | Amador Central | ||||
| AMTK | Amtrak | ||||
| AN | Apalachicola Northern | ||||
| ANR | Angelina & Neches River | ||||
| APA | Apache | ||||
| AR | Aberdeen &Rockfish | ||||
| ASAB | Atlanta & St. Andrews Bay | ||||
| ATLT | At &L Railroad | ||||
| ATSF | Atchison Topeka & Santa Fe | ||||
| ATW | Atlantic & Western | ||||
| AVL | Aroostook Valley | ||||
| AWP | CSX former Atlanta & West Point | ||||
| AWW | Algeers Winslow & Western | ||||
| AZER | Arizona Eastern | ||||
| BA | Boston & Albany (* Conrail) | ||||
| BAR | Bangor & Aroostook | ||||
| BB | Buckingham Branch | ||||
| BCH | Bc Hydro (Southern Railway of British Columbia) | ||||
| BCIT | Bc Rail | ||||
| BCK | Conrail former Buffalo Creek | ||||
| BCLR | Bay Colony | ||||
| BCNE | Canadian National | ||||
| BCOL | BC Rail | ||||
| BFRR | Buffalo Ridge | ||||
| BKTY | Union Pacific former Missouri - Kansas - Texas | ||||
| BLE | Bessemer & Lake Erie | ||||
| BM | Guilford former Boston & Maine | ||||
| BMS | Berlin Mills Railroad | ||||
| BN | Burlington Northern | ||||
| BNSF | Burlington Northern Santa Fe | ||||
| BO | CSX former Baltimore & Ohio | ||||
| BPRR | Buffalo & Pittsburgh | ||||
| BS | Birmingham Southern | ||||
| BVRY | Brandywine Valley | ||||
| BXN | Bauxite & Northern | ||||
| CAGY | Columbus & Greenville | ||||
| CBQ | Burlington Northern Santa Fe former Chicago Burlington & Quincy | ||||
| CBRY | Copper Basin | ||||
| CBYN | Crosbyton Railroad | ||||
| CC | Chicago Central & Pacific | ||||
| CCR | Cornith & Counce | ||||
| CCT | Central California Traction | ||||
| CEI | Union Pacific former Chicago & Eastern Illinois | ||||
| CERA | Central Railroad of Indianapolis | ||||
| CFE | Chicago Fort Wayne & Eastern | ||||
| CFNR | California Northern | ||||
| CFWR | Canery Fork & Western | ||||
| CG | NS former Central of Georgia | ||||
| CGW | Union Pacific former Chicago Great Western | ||||
| CHP | National Railway of Mexico former Chihuahua Pacific | ||||
| CHS | Charlotte Southern | ||||
| CHTT | Union Pacific former Chicago Heights Terninal Transfer | ||||
| CHW | Norfolk Western former Chesapeake Western | ||||
| CI | Cambria and Indiana | ||||
| CIC | Cedar Rapids & Iowa City | ||||
| CIM | Chicago & Illinois Midland | ||||
| CIR | City of Rochelle, Illinois | ||||
| CIRR | Chattahoochee Industrial | ||||
| CIW | Canadian National former Chicago & Illinois Western | ||||
| CLC | Columbia & Cowlitz | ||||
| CLP | Clarendon & Pittsford | ||||
| CMNW | Kansas City Southern former Chicago Missouri & Western | ||||
| CN | Canadian National | ||||
| CNA | Canadian National | ||||
| CNIS | Canadian National | ||||
| CNJ | Central of New Jersey | ||||
| CNQ | Canadian National | ||||
| CNW | Chicago & Northwestern | ||||
| CO | CSX | ||||
| COER | Crab Orchard & Egyptian | ||||
| COP | City of Pineville | ||||
| CP | Canadian Pacific | ||||
| CPAA | Canadian Pacific | ||||
| CPI | Canadian Pacific | ||||
| CPT | Canadian Pacific | ||||
| CR | Conrail | ||||
| CRI | Conrail former Chicago River & Indiana | ||||
| CRL | Chicago Rail Link | ||||
| CRLE | Cor Rail | ||||
| CRR | CSX former Clinchfield | ||||
| CS | Burlington Northern Santa Fe former Colorado & Southern | ||||
| CSL | Chicago Short Line | ||||
| CSS | Chicago South Shore & South Bend | ||||
| CSXT | CSX Transportation | ||||
| CTIE | Kansas City Southern | ||||
| CTML | Cairo Terminal | ||||
| CTN | Canton Railroad | ||||
| CUVA | Canadian National former Central Vermont | ||||
| CW | Colorado & Wyoming | ||||
| CWP | Chicago West Pullman & Southern | ||||
| D&H | Canadian Pacific former Delaware & Hudson | ||||
| DCLR | Delaware Coast Line | ||||
| DCON | Detroit Connecting | ||||
| DHNY | Canadian Pacific former Delaware & Hudson | ||||
| DLW | Conrail former Delaware Lackawanna & Western | ||||
| DM | Lake State former Detroit & Mackinac | ||||
| DME | Dakota Minnesota & Eastern | ||||
| DMIR | Duluth Missabe & Iron Range | ||||
| DNE | Duluth & Northeastern | ||||
| DRGW | Union Pacific former Denver Rio Grande Western | ||||
| DSRC | Dakota Southern | ||||
| DSW | Denver South Western | ||||
| DTI | Canadian National former Detroit Toledo & Ironton | ||||
| DTS | Canadian National former Detroit & Toledo Shore Line | ||||
| DVS | Delta Valley & Southern | ||||
| DWC | Duluth Winnipeg & Pacific | ||||
| EACH | East Camden & Highland | ||||
| EBT | East Broad Top | ||||
| EIRC | Eastern Illinois | ||||
| EJE | Elgin Jolirt & Eastern | ||||
| EL | Conrail former Erie Lackawanna | ||||
| ELS | Escanaba & Lake Superior | ||||
| EN | Canadian Pacific former Esquimalt & Nanaimo | ||||
| ERIE | Conrail former Erie | ||||
| ESE | Empire State Express | ||||
| ESHR | Eastern Shore | ||||
| ETRY | East Tennessee | ||||
| ETWNC | Eastern Tennessee & Western North Carolina | ||||
| FCM | National Railways of Mexico former Ferrocarril Mexicano | ||||
| FCP | National Railways of Mexico former Ferrocarril Del Pacifico | ||||
| FDDM | Union Pacific former Fort Dodge Des Moines & Southern | ||||
| FEC | Florida East Coast | ||||
| FMID | Florida Midland | ||||
| FP | Fordyce & Princeton | ||||
| FRDN | Hartford & Slocomb former Ferdinand Railroad | ||||
| FRMC | Framrail | ||||
| FRVR | Fox River Valley | ||||
| FSR | Fort Smith Railroad | ||||
| FUS | National Railways of Mexico former Ferrocarriles Unidos Del Sureste | ||||
| FWD | Burlington Northern Santa Fe former Fort Worth & Denver | ||||
| FWRC | Florida West Coast | ||||
| GA | CSX former Georgia Railroad | ||||
| GBW | Green Bay & Western | ||||
| GC | Georgia Central | ||||
| GCRC | Golden Cat Railroad | ||||
| GETY | Gettysburg Railroad | ||||
| GF | Norfolk Southern former Georgia & Florida | ||||
| GLSR | Gloster Southern | ||||
| GMO | Canadian National former Gulf Mobile & Ohio | ||||
| GMRC | Green Mountain | ||||
| GMSR | Southrail former Gulf & Mississippi | ||||
| GN | Burlington Northern Santa Fe former Great Northern | ||||
| GNA | Graysonia Nashville & Ashdown | ||||
| GNRR | Georgia Northeastern | ||||
| GNWR | Genesee & Wyoming | ||||
| GP | Georgia Pacific | ||||
| GRN | Greenville & Northern | ||||
| GRR | Georgetown Railroad | ||||
| GSOR | Indiana High Rail | ||||
| GSWR | Georgia Southwestern | ||||
| GT | Grand Trunk | ||||
| GTRA | Golden Triangle | ||||
| GTW | Grand Trunk Western | ||||
| GVSR | Galveston Railroad | ||||
| GWR | Great Western | ||||
| GWWR | Gateway Western | ||||
| HBT | Houston Belt & Terminal | ||||
| HE | Hollis & Eastern | ||||
| HESR | Huron & Eastern | ||||
| HRGGR | H&R Trains Gazebo Garden Railroad | ||||
| HS | Hartford & Slocomb | ||||
| IAIS | Iowa Interstate | ||||
| IATR | Iowa Traction | ||||
| IC | Illinois Central | ||||
| ICE | Iowa Chicago & Eastern | ||||
| ICG | Canadian National former Illinois Central Gulf | ||||
| IHB | Indiana Harbor Belt | ||||
| IHRC | Indiana Hi-Rail Corporation | ||||
| INRD | Indiana Railroad | ||||
| IOCR | Indiana & Ohio Central | ||||
| IORY | Indiana & Ohio Railway | ||||
| ITC | Norfolk Southern former Illinois Terminal | ||||
| JEFW | Jefferson Warrior | ||||
| JSRC | Jackson & Southern | ||||
| KBSR | Kankakee Beaverville & Southern | ||||
| KCS | Kansas City Southern | ||||
| KCT | Kansas City Terminal | ||||
| KJRY | Keokuk Junction | ||||
| KRR | Kiamichi Reilroad | ||||
| KWT | KWT Railroad | ||||
| KYLE | Kyle Railroad | ||||
| LC | Lancaster & Chester | ||||
| LEF | Lake Erie Franklin & Clarion | ||||
| LIRR | Long Island Railroad | ||||
| LN | CSX former Louisville & Nashville | ||||
| LNAC | Hartford & Solcomb former Louisville New Albany & Corydon | ||||
| LNW | Louisiana & North West | ||||
| LPN | Longview Portland & Northern | ||||
| LRS | Laurinburg & Southern | ||||
| LRWN | Little Rock & Western | ||||
| LSI | Lake Superior & Ishpeming | ||||
| LT | Lake Terminal | ||||
| LV | Conrail former Lehigh Valley | ||||
| LVAL | Lackawanna Valley | ||||
| LVRC | Lamoille Valley | ||||
| MAA | Magma Arizona | ||||
| MACO | McCormick Ashland City & Nashville | ||||
| MB | Meridian & Bigbee | ||||
| MCSA | Moscow Camden & San Augustine | ||||
| MDR | Mid Louisiana Rail | ||||
| MDW | Minnesota Dakota & Western | ||||
| MEC | Guilford former Maine Central | ||||
| MET | Modesto & Empire Traction - California | ||||
| MI | Union Pacific former Missouri Illinois | ||||
| MILW | Canadian Pacific former Milwaukee Road | ||||
| MISS | Mississippi Railway | ||||
| MJ | Manufacturers Junction Railway | ||||
| MKC | McKeesport Connecting | ||||
| MKT | Union Pacific former Missouri Kansas & Texas | ||||
| MKTT | Union Pacific former Missouri Kansas & Texas | ||||
| MMID | Maryland Midland | ||||
| MMRR | Mid - Michigan | ||||
| MNCR | Metro North Commuter Railroad | ||||
| MNRR | Minnesota Commercial | ||||
| MNS | Canadian Pacific former Minneapolis Northfield & Southern | ||||
| MNVA | Mnva Railroad | ||||
| MON | CSX former Monon | ||||
| MOW | Maintenance of Way | ||||
| MP | Union Pacific former Missouri Pacific | ||||
| MR | McCloud Railway | ||||
| MRL | Montana Rail Link | ||||
| MRR | Mid Atlantic | ||||
| MRS | Manufacturers Railway | ||||
| MSDR | Mississippi Delta | ||||
| MSE | Mississippi Export Railroad | ||||
| MSRC | Mid South | ||||
| MSTL | union Pacific former Minneapolis & St. Louis | ||||
| MSV | Mississippi & Skuna Valley | ||||
| MTR | CSX former Montour | ||||
| MTW | Tomahawk Railway Marinette Tomahawk & Western | ||||
| NAR | Canadian National former Northern Alberta | ||||
| NBNR | Nicolet Badger Northern | ||||
| NC | CSX former Nashville Chattanooga & St. Louis | ||||
| NDM | National Railway of Mexico | ||||
| NEGS | New England Southern | ||||
| NH | New Haven | ||||
| NHVT | New Hampshire & Vermont | ||||
| NJ | Canadian Pacific former Napierville Junction | ||||
| NKCR | Nebraska Kansas & Colorado Railnet | ||||
| NKP | Norfolk Southern former Nickel Plate | ||||
| NLG | Mid Louisiana | ||||
| NOKL | Northwestern Oklahoma | ||||
| NOPB | New Orleans Public Belt | ||||
| NP | Burlington Northern Santa Fe former Northern Pacific | ||||
| NS | Norfolk Southern | ||||
| NSL | St Lawrence & Raqueette River former Norwood & St. Lawrence | ||||
| NSR | Newburg & South Shore | ||||
| NTR | Natchez Trace Railroad | ||||
| NW | Norfolk Southern former Norfolk & Western | ||||
| NYC | CSX former Conrail former New York Central | ||||
| OAR | Old Augusta Railroad | ||||
| OCE | Oregon California & Eastern | ||||
| OHCR | Ohio Central | ||||
| OKKT | Union Pacific former Oklahoma Kansas & Texas | ||||
| OLB | Omaha Lincoln & Beatrice | ||||
| OLY | Olympic Railroad | ||||
| ONT | Ontario Northern | ||||
| ONTA | Ontario Northern | ||||
| OPE | Oregon Pacific & Eastern | ||||
| OTVR | Otter Tail Valley | ||||
| OWRN | Union Pacific former Oregon - Washington Railroad & Navigation Company | ||||
| PAE | Conrail former Peoria & Eastern | ||||
| PAL | Paducah & Louisville | ||||
| PBNE | Philadelphia Bethlehem & New England | ||||
| PBR | Patapsco & Black River | ||||
| PC | Conrail former Penn Central | ||||
| PCA | Conrail former Penn Central | ||||
| PCN | Point Comfort & Northern | ||||
| PFE | Pacific Fruit Express | ||||
| PGE | BC Rail former Pacific Great Eastern | ||||
| PHD | Port Huron & Detroit | ||||
| PICK | Pickens Railroad | ||||
| PLE | Pittsburgh & Lake Erie | ||||
| PLRR | Plymouth and Lincoln | ||||
| PM | CSX former Pere Marquette | ||||
| PPU | Peoria & Pekin Union Railway | ||||
| PRR | NS former Conrail former Pennsylvania | ||||
| PS | Pittsburgh & Shawmut | ||||
| PWRR | Providence & Worcester | ||||
| QC | Canadian Pacific former Quebec Central | ||||
| RDG | Conrail former Reading | ||||
| RFP | CSX former Richmond Fredericksburg & Potomac | ||||
| RJCM | RJ Corman Railroad Memphis Line | ||||
| RMRR | Rockey Mountain Railcar & Railroad | ||||
| ROCK | Rock Island | ||||
| RS | Roberval & Saguenay | ||||
| RSR | Rochester & Southern | ||||
| RSS | Rockdale Sandow & Southern | ||||
| SAL | CSX former Seaboard Air Line | ||||
| SAN | Sandersville Railroad | ||||
| SB | South Buffalo Railroad | ||||
| SBC | National Railways of Mexico former Sonora Baja California | ||||
| SBD | CSX former Seaboard System | ||||
| SCFE | South Central Florida | ||||
| SCL | CSX former Seaboard Coast Line | ||||
| SCRF | South Carolina Central | ||||
| SCTR | South Central Tennessee | ||||
| SGLR | Seminole Gulf | ||||
| SH | Steelton & Highspire | ||||
| SI | Union Pacific former Spokane International | ||||
| SIRT | Staten Island Rapid Transit | ||||
| SLC | San Luis Central | ||||
| SLR | St Lawrence & Atlantic | ||||
| SLSF | Burlington Northern Santa Fe former Saint Louisiana San Francisco | ||||
| SM | St Marys Railroad | ||||
| SMRR | Sisseton Milbank Railroad | ||||
| SOM | Somerset Railroad | ||||
| SOO | Canadian Pacific former Soo Line | ||||
| SOU | Norfolk Southern former Southern Railway | ||||
| SP | Union Pacific former Southern Pacific | ||||
| SPS | Burlington Northern Santa Fe former Spokane Portland & Seattle | ||||
| SR | South Rail | ||||
| SRN | Sabin River & Northern | ||||
| SSAM | Sault St. & Marie | ||||
| SSW | Union Pacific former St Louis Southwestern (Cotton Belt) | ||||
| ST | Springfield Terminal | ||||
| STE | Stockton Terminal & Eastern | ||||
| STMA | St Maries River | ||||
| SWGR | Seagraves Whiteface & Lubbock | ||||
| TAG | Tennessee Alamaba & Georgia Railway Company | ||||
| TASD | Terminal Railroad Alabama State Docks | ||||
| TBER | Terre Haute Brizil & Eastern | ||||
| TCBY | Tecumseh Branch Connecting | ||||
| TCWR | Twin Cities & Western | ||||
| THB | Canadian Pacific former Toronto Hamilton & Buffalo | ||||
| TM | Texas Mexican | ||||
| TN | Texas & Northern | ||||
| TNM | Union Pacific former Texas New Mexico | ||||
| TOE | Texas Oklahoma & Eastern | ||||
| TP | Union Pacific former Texas & Pacific | ||||
| TPW | Toledo Peoria & Western | ||||
| TSE | Texas South Eastern | ||||
| TSRD | Twin State Railroad | ||||
| TSRR | Tennessee Southern | ||||
| TTIS | Trans Kentucky Transportation Railroad | ||||
| TWRY | Tradewater Railway | ||||
| UMP | Upper Merion & Plymouth | ||||
| UP | Union Pacific | ||||
| URR | Union Railroad | ||||
| USRX | US Railways | ||||
| VCY | Ventura County | ||||
| VGN | Norfolk Southern former Virginian | ||||
| VT | Virginia & Truckee | ||||
| VTR | Vermont Railroad | ||||
| WA | CSX former Western Railroad of Alabama | ||||
| WAB | Norfolk Southern former Wabash | ||||
| WC | Canadian National former Wisconsin Central | ||||
| WCCL | Wisconsin Central Chicago Loop | ||||
| WCRC | Washington Central | ||||
| WCTR | WCTU Railroad | ||||
| WE | Wheeling & Lake Erie | ||||
| WGRR | Willamina & Grande Ronde | ||||
| WICT | Wisconsin & Calumet | ||||
| WIF | West India Fruit & Steamship | ||||
| WLO | Waterloo Railroad | ||||
| WM | CSX former Western Maryland | ||||
| WNFR | Winifrede Railroad | ||||
| WP | Union Pacific former Western Pacific | ||||
| WRRC | Western Railroad | ||||
| WSOR | Wisconsin & Southern | ||||
| WW | Winchester & Western | ||||
| YS | Youngstown & Southern | ||||
| IL | Long Island Railroad | 8/29/07 | |||
| CUOH | Columbus & Ohio River (Ohio Central) | 8/29/07 | |||
| SRC | Strasburg Railroad | 8/29/07 | |||
| POCH | Pittsburgh & Ohio Central | 8/29/07 | |||
| DMVW | Dakota Missouri Vallen & Western | 8/29/07 | |||
| DN | Dakota Northern | 8/29/07 | |||
| MNN | Minnesota Northern | 8/29/07 | |||
| NPR | Northern Plains Railroad | 8/29/07 | |||
| MRI | Mohall Railroad Inc | 8/29/07 | |||
| MCR | Mohall Central Railroad | 8/29/07 | |||
| RRVW | Red River Valley & Western | 8/29/07 | |||
| SCXY | St Croix Valley | 8/29/07 | |||
| KO | Kansas & Oklahoma | 8/29/07 | |||
| SKOL | South Kansas & Oklahoma | 8/29/07 | |||
| AGS | Alabama Great Southern | 9/11/07 | |||