AA
| Ann Arbor | 2 |
ABS
| Alabama Southern Railroad | 4 |
ABWX
| Asea Brown Boveri Incorporated | 3 |
AC
| Algoma Central | 1 |
ACL
| Atlantic Coast Line | 4 |
ACMX
| Voith Hydro Incorporated | 1 |
ADBF
| Adrian and Blissfield Rail Road Company | 5 |
AEFR
| Aurora Elgin and Fox River Electric | 1 |
AEQX
| ATEL Equipment Corporation | 30 |
AERC
| Albany and Eastern Railroad Company | 9 |
AFRX
| AF Railway Industries Incorporated | 1 |
AFT
| AMERICAN FREEDOM TRAIN FOUNDATION | 3 |
AKS
| AK Steel | 17 |
ALAB
| Alabama Railroad | 1 |
ALL
| America Latina Logistica | 530 |
ALM
| Arkansas Louisiana and Mississippi Railr | 1 |
ALS
| Alton & Southern Railway | 1 |
ALT
| AIRLAKE TERMINAL RAILWAY COMPANY | 12 |
AM
| Arkansas & Missouri | 4 |
AMTK
| Amtrak | 55 |
AOC
| AOC | 1 |
AOE
| American Orient Express | 4 |
AOG
| AOG | 1 |
AOK
| Arkansas-Oklahoma Railroad | 143 |
AOKX
| Greenbrier Management Services, LLC | 48 |
APA
| Apache Railway Company | 2 |
APEX
| Apex Tank Car Line | 9 |
APPX
| Appalachian Railcar Services | 12 |
APRX
| Air Products and Chemicals Incorporated | 2 |
APTX
| Air Products and Chemicals Incorporated | 6 |
APWX
| Appalachian Power Company | 2 |
AR
| Aberdeen and Rockfish | 2 |
ARI
| ARI | 1 |
ARLX
| A & R Leasing LLC | 2 |
ARR
| Alaska Railroad | 104 |
ARZC
| Arizona and California Railroad | 4 |
ASCX
| ARMCO Steel Company | 1 |
ASLX
| American Surface Lines, LLC | 1 |
ATMX
| U.S. Dept. of Energy Albuquerque Operations Office | 4 |
ATRX
| ATLANTA RAILCAR COMPANY | 2 |
ATSF
| Atchison Topeka & Santa Fe | 205 |
ATTX
| TTX Company - Container Flats | 122 |
ATW
| Atlantic and Western | 90 |
AWXX
| East Carbon development Company | 119 |
AZER
| Arizona Eastern Railway Company | 2 |
BANA
| BANA | 1 |
BAR
| Bangor & Aroostook | 8 |
BART
| BART | 1 |
BAWX
| Babcox & Wilcox | 4 |
BBCX
| ABB Power Generation Incorporated | 3 |
BC
| BARRE & CHELSEA RAILROAD | 3 |
BCOL
| Canadian National Railways | 23 |
BCR
| Bay Coast Railroad | 3 |
BDRV
| Belvidere & Delaware Railroad | 2 |
BECX
| FMC Corporation | 1 |
BEDX
| BEDX | 1 |
BKRR
| Batten Kill Railroad | 1 |
BLE
| Bessemer & Lake Erie | 3 |
BLHX
| SMBC RAIL SERVICES LLC | 22 |
BLPX
| BLPX | 17 |
BM
| Boston & Maine | 8 |
BN
| Burlington Northern | 279 |
BNG
| Blackwell Northern Gateway Railroad Comp | 1 |
BNSF
| BNSF Railway | 747 |
BO
| Baltimore & Ohio | 16 |
BOOT
| BOOT | 1 |
BPAX
| US Dept of Energy Bonneville Power Administration | 3 |
BPRR
| Buffalo and Pittsburgh | 7 |
BRAD
| BRAD | 1 |
BRC
| Belt Railway of Chicago | 1 |
BSCX
| Bethlehem Steel Corporation | 4 |
BSRX
| Branson Scenic | 1 |
BTCX
| Browner Turnout Company | 135 |
BTFX
| BTFX | 15 |
BTTX
| TTX Company - Autoracks | 3 |
BVRV
| BVRV | 1 |
BVRY
| Brandywine Valley Railroad Company | 42 |
BYCX
| Chelatchie Prairie Railroad | 1 |
CACV
| Cooperstown and Charlotte Valley | 1 |
CAGY
| Columbus & Greenville Railway | 5 |
CANX
| CANAC International | 15 |
CASS
| Cass Scenic | 1 |
CBCX
| Morton International | 1 |
CBNS
| Cape Breton & Central Nova Scotia Ry | 7 |
CBQ
| Chicago Burlington & Quincy | 38 |
CC
| Chicago Central & Pacific | 14 |
CCCL
| Connecticut Central Railroad Company | 2 |
CCKX
| CCKX Incorporated | 5 |
CCO
| Clinchfield | 1 |
CCRX
| Cape Cod Railroad | 3 |
CCT
| Central California Traction Company | 2 |
CCTX
| Coleto Creek Power WLE, LP | 1 |
CCXX
| Costain Coal Incorporated | 2 |
CEI
| Chicago & Eastern Illinois | 1 |
CELX
| Celtran Incorporated (Hoechst Celanese Corp) | 1 |
CEMR
| Central Manitoba Railway Incorporated | 2 |
CF
| Cape Fear Railways Incorporated | 1 |
CG
| Central Of Georgia | 4 |
CGW
| Chicago Great Western | 4 |
CHP
| Ferrocarriles Nacionales de Mexico | 1 |
CI
| Cambria and Indiana Railroad Company | 1 |
CIC
| Cedar Rapids & Iowa City | 1 |
CIE
| CIE | 1 |
CIGX
| THE CIT GROUP/CAPITAL FINANCE, INC. | 19 |
CIL
| Chicago Indianapolis & Louisville (Monon | 2 |
CIRC
| CIRC | 10 |
CITX
| CIT Group/Capital Finance, Inc | 15 |
CMO
| Chicago St Paul Minneapolis & Omaha | 1 |
CMRR
| Catskill Mountain Scenic | 7 |
CMW
| CMW | 4 |
CN
| Canadian National Railways | 304 |
CNA
| Canadian National Railways | 25 |
CNIS
| Canadian National Railways | 7 |
CNJ
| Central Rail Road of New Jersey | 1 |
CNSM
| CHICAGO NORTH SHORE & MILWAUKEE RWY | 1 |
CNW
| Chicago & Northwestern | 33 |
CNWX
| Canadian Wheat Board | 1 |
CO
| Chesapeake & Ohio | 35 |
COER
| Crab Orchard & Egyptian | 11 |
COP
| City of Prineville Railway | 1 |
COVE
| COVE | 1 |
COVX
| COVANTA SUSTAINABLE SOLUTIONS LLC | 6 |
CP
| Canadian Pacific Railway | 1179 |
CPAA
| Canadian Pacific Railway | 2 |
CPOX
| Consumers Power Company (Mich.) | 1 |
CPRX
| Carolina Power and Light Company | 3 |
CR
| Conrail | 83 |
CREX
| Citicorp Railmark, Inc | 3 |
CRHA
| Candian Railroad Historical Assocation | 2 |
CRIP
| Chicago Rock Island & Pacific | 9 |
CRLE
| Coe Rail Incorporated | 11 |
CRR
| Clinchfield | 2 |
CRRX
| Canon City and Royal Gorge Railroad LLC | 2 |
CS
| Colorado & Southern | 1 |
CSAO
| Conrail Shared Assets | 1 |
CSCO
| CSCO | 1 |
CSD
| CSD | 1 |
CSP
| Camas Prairie RailNet Incorporated | 2 |
CSRR
| Conway Scenic | 1 |
CSS
| Chicago South Shore And South Bend | 60 |
CSW
| CSW | 1 |
CSX
| CSX Railroad | 287 |
CTA
| Chicago Transit Authority | 7 |
CTCX
| Endasa S.A. De C.V. | 1 |
CTHX
| COLOSSAL TRANSPORT SOLUTIONS, LLC | 1 |
CTIE
| Kansas City Southern Railway Company | 2 |
CTTX
| TTX Company - Autoracks | 1 |
CUVA
| ISG Cleveland Works Railway Company | 6 |
CV
| Central Vermont | 3 |
CVR
| Cimarron Valley Railroad L.C. | 1 |
CW
| Colorado and Wyoming | 150 |
CWEX
| Midwest Generation LLC | 1 |
CWI
| Chicago and Western Indiana | 2 |
CWM
| CWM | 10 |
CWMX
| Chemical Waste Management Incorporated | 5 |
CWR
| CWR Incorporated | 1 |
CWRO
| Cleveland Works Rail Operations | 9 |
CYPR
| CYPR | 2 |
DAKR
| Dakota Rail Incorporated | 3 |
DB
| Deutsche Bahn | 1 |
DC
| Delray Connecting Railroad Company | 1 |
DCCX
| McDonnell Douglas Corporation | 1 |
DCLR
| Delaware Coast Line RR Co | 1 |
DEOX
| DEOX | 1 |
DGVR
| DURBIN & GREENBRIER VALLEY RAILROAD INC | 2 |
DH
| Delaware & Hudson | 11 |
DIR
| DIR | 1 |
DJTX
| Joseph Transportation Incorporated | 16 |
DL
| Delaware-Lackawanna Railroad Company | 2 |
DLA
| DLA | 1 |
DME
| Dakota, Minnesota and Eastern | 2 |
DMIR
| Duluth Missabe & Iron Range | 2 |
DMN
| Duluth Missabe and Northern Railway | 1 |
DNE
| Duluth and Northeastern Railroad Company | 1 |
DOD
| DOD | 1 |
DODX
| Department Of Defense | 1335 |
DOE
| DOE | 2 |
DRGW
| Denver & Rio Grande Western | 67 |
DSEX
| East Carbon Development Company | 169 |
DSNG
| Durango & Silverton Narrow Gauge Railroa | 4 |
DSPP
| Denver, South Park & Pacific RR | 1 |
DSRC
| Dakota Southern Railway Company | 1 |
DSRX
| Downeast Scenic | 1 |
DSSA
| Duluth, South Shore & Atlantic | 1 |
DSWX
| DSWX | 3 |
DTI
| Detroit Toledo & Ironton | 2 |
DTS
| Detroit & Toledo ShoreLine | 1 |
DTTX
| TTX Company - Double Stack Cars | 3 |
DUKX
| Dupps Company | 3 |
EBGR
| Eastern Berks Gateway Railroad | 2 |
EBT
| East Broad Top | 5 |
EBTX
| English Boiler & Tube | 1 |
ECRM
| ECRM | 1 |
ECRX
| Econo-Rail Corp. | 1 |
ECXX
| East Carbon Development Company | 92 |
EFA
| Estrada de Ferro Amapa | 2 |
EFVM
| Estrada de Ferro Vitoria-Minas | 938 |
EGXX
| EGXX | 1 |
EJE
| Elgin Joliet and Eastern | 50 |
EL
| Erie Lackawanna | 5 |
ELKX
| Elkem Metals Company | 4 |
ELP
| ELP | 1 |
ELS
| Escanaba and Lake Superior Railroad Comp | 6 |
ENR
| E and N Railway Company Limited | 2 |
EP
| EP | 1 |
EPIX
| EPIC | 1 |
ERES
| Erie Western | 2 |
ERGX
| Hudson Logistics | 8 |
ERIE
| Erie Railroad | 1 |
ESHR
| Eastern Shore Railroad | 3 |
ESIX
| Envirosolutions Inc | 11 |
ESTX
| Energy Solutions | 13 |
ETTX
| TTX Company - Autoracks | 1 |
EV
| Everett Railroad | 3 |
FA
| FA | 1 |
FALX
| Falk Corporation | 1 |
FBC
| FBC | 1 |
FCA
| Ferrovia Centro Atlantica | 554 |
FCCM
| Compania de Ferrocarriles Chiapas Mayab | 21 |
FCP
| Ferrocarril Del Pacifico | 2 |
FEC
| Florida East Coast | 551 |
FEPA
| FEPA | 5 |
FGCX
| Florida Gulf Coast Railroad Museum Incorporated | 1 |
FICX
| Frontier Industrial Corp | 6 |
FJG
| Fonda Johnstown & Gloversville RR | 1 |
FMWX
| FMWX | 1 |
FN
| FN | 2 |
FPBX
| International Paper Corporation | 6 |
FRR
| Falls Road Railroad Company Incorporated | 16 |
FRVT
| Fore River Transportation Corporation | 1 |
FTSX
| Fairmont Tamper | 86 |
FTTX
| TTX Company | 636 |
FTVM
| FerroValle | 1 |
FURX
| First Union Rail | 47 |
FUS
| Ferrocarriles Nacionales de Mexico | 2 |
FWCR
| Florida West Coast Railroad Incorporated | 1 |
FWRY
| Fillmore Western Railway Company | 2 |
FWWR
| Fort Worth and Western | 1 |
FXE
| Ferromex | 48 |
GADX
| SAB Trucking, Inc | 55 |
GBL
| GBL | 1 |
GBRX
| Greenbrier Leasing Corporation | 50 |
GBW
| Green Bay & Western | 1 |
GCCX
| General American Marks Company | 1 |
GCFX
| Alstom Canada | 1 |
GCMX
| Gulf Coast Chapter National Railway Hist | 1 |
GDC
| GDC | 1 |
GECX
| General Electric Company | 1 |
GEDX
| GEDX | 1 |
GEGX
| GE Gas Turbine | 2 |
GETY
| Gettysburg Railroad | 1 |
GEX
| General Electric Company | 15 |
GIMX
| General American Marks Company | 288 |
GLRX
| Georgetown Loop Railroad Incorporated | 6 |
GMIX
| Chicago Freight Car Leasing Company | 4 |
GMO
| Gulf Mobile & Ohio | 3 |
GMRC
| Green Mountain RR | 8 |
GMRY
| Great Miami | 1 |
GMSR
| Kansas City Southern | 2 |
GMTX
| GATX Rail Locomotive Group | 1 |
GN
| Great Northern | 18 |
GNWR
| Genesee and Wyoming Railroad Company | 76 |
GPSX
| Georgia-Pacific Corporation Eastern Wood Products Mfg.Divisi | 41 |
GSM
| Great Smokey Mountains Railway | 1 |
GSMR
| Great Smoky Mountains | 1 |
GTR
| Great River Railroad; d/b/a Rosedale-Bolivar County Port Comm | 1 |
GTTX
| TTX Company - Flat Cars | 46 |
GTW
| Grand Trunk Western | 41 |
GVSR
| Galveston Railroad L.P. | 9 |
GWMW
| GWMW | 1 |
GWWD
| Greater Winnipeg Water District | 4 |
GWWR
| Gateway Western | 4 |
GZSX
| GZSX | 2 |
HAWA
| HAWA | 1 |
HCMX
| Harnischfeger CCorporation | 3 |
HCR
| HCR | 1 |
HCRY
| Huron Central Railway | 2 |
HEPX
| Ontario Hydro | 1 |
HESX
| Heritage Environmental Services | 22 |
HKRX
| HKRX | 39 |
HMIX
| Henkels and McCoy Inc | 2 |
HMTX
| HMTX | 1 |
HPAX
| International Paper Company | 15 |
HPJX
| Helm-Pacific Leasing | 1 |
HS
| H and S Railroad Company | 79 |
HTPX
| HTPX | 1 |
HTTX
| TTX Company | 732 |
HTX
| HTX | 1 |
HVRM
| HVRM | 2 |
HVRX
| Heber Valley Historic Railroad | 1 |
HWCX
| Halliburton Company | 2 |
HZGX
| Herzog Contracting Corporation | 6 |
IAIS
| Iowa Interstate | 3 |
IANR
| Iowa Northern Ry | 2 |
IARX
| IARX | 5 |
IATR
| Iowa Traction Railroad Company | 5 |
IC
| Illinois Central | 57 |
ICE
| Iowa Chicago and Eastern | 190 |
ICG
| Illinois Central Gulf | 13 |
IFRX
| Infinity Rail LLC | 13 |
IHB
| Indiana Harbor Belt | 8 |
IHCR
| IHCR | 1 |
IHXX
| IHXX | 2 |
IMRL
| I&M Rail Link | 3 |
IN
| Indiana Northeastern | 3 |
INLX
| Incoal Company | 114 |
INOH
| Indiana and Ohio Railroad Incorporated | 1 |
INPR
| Idaho Northern and Pacific Railroad | 5 |
IPCX
| International Paper Company | 18 |
IPEX
| Indeck Power Equipment Company | 3 |
IPOX
| A and R Leasing, LLP | 1 |
IRYM
| Illinois Railway Museum | 6 |
ITC
| Illinois Terminal Railroad | 6 |
ITDX
| SULCOM Incorporated | 1 |
ITGX
| Andersons - Railgroup | 3 |
ITTX
| TTX Company | 1064 |
JCIX
| Jones Chemicals, Inc. | 1 |
JCLX
| Mid-Am Equipment Incorporated | 1 |
JDIX
| Jim Dobbas Incorporated | 1 |
JESX
| James E Strates Shows | 48 |
JL
| JL | 1 |
JLSX
| Jones & Laughlin Steel Corp. | 2 |
JOBX
| Tealinc Limited | 5 |
JR
| JR | 4 |
JTFS
| JTFS | 1 |
JTHX
| Citicorp Railmark Incorporated | 4 |
JTLX
| CIT Group/Capital Finance, Inc | 15 |
JTSX
| Joseph Transportation Incorporated | 18 |
JTTX
| TTX Company | 265 |
KCS
| Kansas City Southern | 81 |
KHL
| KHL | 1 |
KJR
| Kiski Junction Railroad | 1 |
KKRR
| Knox and Kane Railroad Company | 1 |
KOR
| KOR | 6 |
KR
| KR | 3 |
KRL
| Kasgro Rail Lines | 424 |
KRLX
| KRLX | 1 |
KTMB
| KTMB | 1 |
KTTX
| TTX Company | 20 |
KWUX
| Siemens Power Corporation | 14 |
LARY
| LARY | 1 |
LBFX
| L B Foster Co | 15 |
LBR
| Lowville and Beaver River Railroad Compa | 42 |
LCLX
| Ledcor Communications Limited | 3 |
LERC
| LERC | 1 |
LGAX
| Lockheed-Georgia Co. | 1 |
LHFX
| Lehigh Heavy Forge Corporation | 19 |
LI
| Long Island Rail Road Company | 4 |
LIRC
| Louisville & Indiana | 2 |
LMIC
| Lake Michigan & Indiana Railroad | 326 |
LMIX
| Loram Maintenance of Way Inc. | 2 |
LN
| Louisville & Nashville | 11 |
LNAL
| Louisville New Albany and Corydon Railroad | 10 |
LNE
| Lehigh and New England Ry | 1 |
LOGX
| Linden Leasing Incorporated | 3 |
LRRR
| LRRR | 1 |
LSI
| Lake Superior and Ishpeming Railroad | 2 |
LSMR
| LSMR | 1 |
LSRC
| Lake State Railway Company | 6 |
LTIX
| LTIX | 2 |
LTTX
| TTX Company | 118 |
LUK
| LUK | 6 |
LUKE
| LUKE | 3 |
LV
| Lehigh Valley | 2 |
LW
| Louisville and Wadley Railway Company | 1 |
M
| M | 1 |
MAMX
| Mammoet USA, Inc | 2 |
MART
| MART | 1 |
MBCX
| Chicago Freight Car Leasing Co | 2 |
MBTA
| Massachusetts Bay Transit Authority | 1 |
MBTX
| MBTX | 9 |
MCER
| Massachusetts Central Railroad | 1 |
MCRY
| MCRY | 1 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 5 |
MD
| C&J RAILROAD COMPANY D/B/A MISSISSIPPI DELTA RAILROAD | 1 |
MDRX
| Mdrc I LLC | 3 |
ME
| Morristown & Erie Railroad | 4 |
MEC
| Maine Central | 6 |
MESX
| Mears/CPG Incorporated | 1 |
MET
| Modesto and Empire Traction Company | 1 |
METW
| Municipality of East Troy Wisc. | 1 |
METX
| METRA | 9 |
MHBC
| MHBC | 1 |
MHWA
| Mohawk Adirondack and Northern Railroad | 1 |
MICO
| MICO | 1 |
MILW
| Milwaukee Road | 92 |
MKT
| Missouri-Kansas-Texas | 11 |
MLRX
| MLRX | 1 |
MMA
| Montreal, Maine & Atlantic | 1 |
MNA
| Missouri and Northern Arkansas | 1 |
MNCW
| Metro-North Commuter Railroad | 9 |
MNG
| MNG | 1 |
MNNR
| Minnesota Commercial | 6 |
MNS
| Minneapolis Northfield & Southern | 4 |
MNTX
| Minnesota Transportation Museum, Inc. | 3 |
MON
| Monon Route | 2 |
MP
| Missouri Pacific | 311 |
MPA
| Maryland and Pennsylvania Railroad | 3 |
MPCX
| Michels Corporation | 2 |
MR
| McCloud Railway Company | 1 |
MREX
| Monad Railway Equipment Company | 2 |
MRL
| Montana Rail Link | 11 |
MRMX
| Midwest Railcar Corporation | 1 |
MRRX
| Murphy Road Recycling LLC | 1 |
MRS
| Manufacturers Railway | 1 |
MRSL
| MRS Logistica | 1226 |
MRSM
| MRSM | 1 |
MRYM
| Monticello Railway Museum | 2 |
MSDR
| Knoxville & Holston River Railroad | 1 |
MSO
| Michigan Southern | 1 |
MSPX
| P4 Productions LLC | 1 |
MSRC
| Kansas City Southern | 2 |
MSTL
| Minneapolis & St Louis | 15 |
MSWY
| Minnesota Western RR | 1 |
MTMX
| MTMX | 1 |
MTSX
| MAX TRANSPORTATION SERVICE | 65 |
MTTX
| TTX Company | 452 |
MVCX
| MVCX | 1 |
MVKX
| Tubular Transport Services | 2 |
MW
| MW | 1 |
NAM
| Namibia Railways | 6 |
NAR
| Northern Alberta Railways | 4 |
NBCX
| Nebraska Boiler Co | 1 |
NBSR
| New Brunswick Southern Railway Company L | 1 |
NCB
| Nevada Copper Belt | 1 |
NCMX
| North Carolina Transportation Museum | 1 |
NCPC
| NCPC | 1 |
NDEM
| NDEM | 25 |
NH
| New Haven | 4 |
NHVX
| East Carolina Chapter National Railway H | 3 |
NICX
| Echo freight | 3 |
NIFX
| General Electric Rail Services Corporation | 1 |
NJRC
| New Jersey Rail Carrier LLC | 20 |
NJT
| New Jersey Transit | 5 |
NJTR
| NJ Transit Rail Operations | 3 |
NKLX
| NKLX | 2 |
NKP
| Nickel Plate | 9 |
NLAX
| National Aeronautics and Space Administration (NASA) | 1 |
NM
| National Railways of Mexico | 6 |
NN
| Northern Nevada Railroad Corporation | 2 |
NNSX
| Newport News Shipbuilding and Dry Dock Company | 2 |
NNYX
| National New York Central Railroad Museu | 1 |
NOKL
| Northwestern Oklahoma | 29 |
NP
| Northern Pacific | 59 |
NRE
| NRE | 1 |
NREX
| National Railway Equipment | 6 |
NRPX
| Northrop Corporation | 1 |
NS
| Norfolk Southern | 327 |
NSW
| Northwest Steel and Wire | 1 |
NTKX
| VAE Nortrak North America Incorporated | 3 |
NTTX
| TTX Company | 2 |
NUCX
| Nucor Steel | 1 |
NW
| Norfolk & Western | 66 |
NWSX
| NEW YORK RAIL LOGISTICS LLC | 14 |
NYC
| New York Central | 79 |
OAE
| OAE | 1 |
OBB
| OBB | 3 |
OCE
| Oregon California & Eastern | 2 |
OCSR
| OCSR | 1 |
OEMW
| OEMW | 1 |
OFOX
| RESIDCO | 1 |
OHCR
| Ohio Central | 1 |
OMID
| Ontario Midland Railroad Corporation | 1 |
ONR
| ONR | 1 |
ONT
| Ontario Northland Railway | 35 |
ONW
| Oregon & Northwestern | 1 |
OTDX
| Greenbrier Leasing Corporation | 3 |
OTRX
| On-Track Railway Services Limited | 6 |
OTTX
| TTX Company | 1374 |
OUAX
| OUAX | 1 |
PACX
| Plasser American Corporation | 2 |
PAL
| Paducah & Louisville | 6 |
PALX
| Paducah & Louisville | 1 |
PATH
| PATH | 6 |
PBNE
| Philadelphia Bethlehem and New England R | 2 |
PC
| Penn Central | 34 |
PCC
| Palouse River and Coulee City | 9 |
PE
| Peoria & Eastern | 1 |
PEC
| PEC | 1 |
PEYX
| Transportation Technology Services Inc | 98 |
PFF
| Pacific Fruit Express | 1 |
PGE
| Pacific Great Eastern | 1 |
PGR
| Progressive Rail, Inc | 14 |
PHMX
| P&H Mining Equipment | 23 |
PHWX
| PHWX | 1 |
PKP
| Polish Railways | 2 |
PLA
| Pacific Locomotive Association [Niles Canyon Railway] | 2 |
PLE
| Pittsburgh & Lake Erie | 6 |
PME
| PME | 1 |
POTB
| Port of Tillamook Bay | 11 |
POVA
| Pend Oreille Valley Railroad | 1 |
PPGX
| PPG Industries Incorporated | 1 |
PPU
| Tazewell & Peoria Railroad | 15 |
PRR
| Pennsylvania Railroad | 51 |
PRSX
| Progress Rail Service | 11 |
PST
| PST | 1 |
PTDX
| ABB Power T and D Company Incorporated | 10 |
PTIX
| Paneltech International LLC | 3 |
PTM
| Portland Terminal | 1 |
PTNX
| PTNX | 1 |
PTOX
| PTO Incorporated | 1 |
PTTX
| TTX Company | 1818 |
PW
| Providence and Worcester | 10 |
QCM
| Quebec Cartier Railroad | 5 |
QGRY
| Quebec Gatineau Railway Incorporated | 2 |
QTTX
| TTX Company | 476 |
QUAX
| Redstreak, LLC | 89 |
RAIX
| Union Carbide Corporation | 13 |
RBBX
| Ringling Bros. and Barnum and Bailey | 61 |
RBMN
| Reading Blue Mountain & Northern | 9 |
RBOX
| Railbox Company | 1 |
RBX
| Ringling Bros. and Barnum and Bailey | 8 |
RCBT
| RCBT | 1 |
RCFX
| Railroad Construction Company | 2 |
RCLX
| Macquarie Rail Inc | 6 |
RCTH
| RCTH | 1 |
RDG
| Reading Railroad | 9 |
REGX
| Regus Industries LLC | 2 |
RFFS
| RFFS | 1 |
RFP
| Richmond Fredericksburg & Potomac | 2 |
RFRX
| Rick Franklin Corporation | 1 |
RGAX
| RGAX | 1 |
RI
| RI | 5 |
RISX
| RISX | 1 |
RITX
| RITX | 1 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 2 |
RLK
| RailAmerica Ottawa Valley Railway | 3 |
RNDX
| American Railcar Leasing, LLC | 1 |
ROCK
| Rock Island | 2 |
ROCX
| Rocky Mountain Transportation Services | 1 |
RRL
| RRL | 1 |
RRRR
| Rock and Rail Incorporated | 1 |
RRTX
| RRTX | 2 |
RRW
| Rockton Rion & Western | 1 |
RSCX
| Republic Steel | 2 |
RSGX
| RSGX | 47 |
RSX
| RSX | 1 |
RT
| River Terminal Railway Company | 7 |
RTIX
| RTI - Railroad Services | 50 |
RTTX
| TTX Company | 1033 |
RUMO
| RUMO | 8 |
RUT
| Vermont Railway Incorporated | 1 |
RVPR
| Riverport R.R., L.L.C. | 1 |
SAL
| Seaboard Air Line | 4 |
SAS
| South African Railways | 344 |
SBC
| Ferrocarril Sonora Baja California | 2 |
SBD
| Seaboard System | 36 |
SBIX
| SBIX | 1 |
SBLJ
| SBLJ | 1 |
SCAX
| SOUTHERN CALIFORNIA REGIONAL RAIL AUTHORITY | 2 |
SCL
| Seaboard Coast Line | 11 |
SCRM
| SCRM | 1 |
SDIV
| San Diego and Imperial Valley | 1 |
SDIX
| Steel Dynamics, Inc | 6 |
SE
| Semo Port Railroad Incorporated | 2 |
SFG
| Societe du Chemin de Fer de la Gaspesie | 1 |
SFLC
| BNSF Railway | 1 |
SFS
| Santa Fe Southern | 10 |
SGN
| Silverton, Gladstone & Northerly | 1 |
SHNX
| Sins Hugo Neu | 1 |
SHRR
| SHRR | 1 |
SHRX
| Smoky Hill Railway & Historical Society | 1 |
SI
| Union Pacific Railroad Company (Spokane International) | 4 |
SIIX
| SIIX | 1 |
SIRT
| Staten Island Rapid Transit | 5 |
SITX
| Sherritt International Corporation | 3 |
SJTX
| Stella Jones, Inc | 14 |
SKOL
| South Kansas and Oklahoma | 2 |
SLR
| St Lawrence & Atlantic | 8 |
SLSF
| Saint Louis-San Francisco | 4 |
SLVX
| Silver Enterprises | 3 |
SMRS
| Springfield (MO) Railway Services | 2 |
SMW
| St Marys Railway West LLC | 1 |
SN
| Sacramento Northern | 1 |
SNHX
| IND/AG Chemicals Incorporated | 5 |
SNJX
| SOUTHERN NEW JERSEY RAIL GROUP LLC | 1 |
SOO
| Soo Line | 116 |
SOU
| Southern | 285 |
SOXX
| SMBC RAIL SERVICES LLC | 21 |
SP
| Southern Pacific | 241 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 1 |
SPCX
| Qwest Communications Corporation | 5 |
SPMW
| Southern Pacific Maintenance of Way | 46 |
SPR
| SPR | 1 |
SPS
| Spokane Portland & Seattle | 10 |
SPSX
| Progress Rail Services Corp | 61 |
SR
| Kansas City Southern | 1 |
SRC
| Strasburg Railroad | 1 |
SRLX
| Southern Rail Leasing Incorporated | 1 |
SRMX
| Southeastern Railway | 1 |
SRRY
| SRRY | 1 |
SRT
| SRT | 4 |
SRY
| Southern Railway of British Columbia Lim | 1 |
SRYC
| Sierra Railway Company of California | 2 |
SS
| Sand Springs Railway Company | 2 |
SSRH
| SSRH | 1 |
SSRR
| Sacramento Southern | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 70 |
SSWM
| SSWM | 1 |
STC
| STC | 4 |
STIE
| Superior Tie & Timber (KCS) | 2 |
STLJ
| STLJ | 1 |
STMA
| St. Maries River Railroad Company | 28 |
STPX
| Strategic Transport Systems Incorporated | 2 |
STTX
| TTX Company | 2 |
SVRY
| SVRY | 6 |
SW
| Southwestern Railroad Company | 1 |
TAG
| Tennessee, Alabama & Georgia | 1 |
TASD
| Terminal Alabama State Docks | 2 |
TBCX
| Boeing Company | 61 |
TBOX
| TTX Company | 1 |
TC
| Temple & Central Texas | 1 |
TC1
| Tennessee Central | 1 |
TCRY
| Tri-City Railroad | 1 |
TCWR
| Twin Cities and Western | 1 |
TCX
| General American Marks Company | 1 |
TDIX
| Transdynamic Leasing | 1 |
TEXX
| TEXX | 20 |
TFM
| Kansas City Southern De Mexico | 64 |
TFWX
| TTX COMPANY | 10 |
TGX
| TGX | 1 |
THB
| Toronto Hamilton & Buffalo | 1 |
TKEN
| Tennken Railroad Company Incorporated | 1 |
TM
| Texas-Mexican | 1 |
TMCX
| TMCX | 1 |
TMER
| TMER | 6 |
TN
| Texas and Northern Railway Company | 22 |
TNER
| Texas Northeastern Division Mid-Michigan | 1 |
TOE
| Texas Oklahoma and Eastern RR Company | 6 |
TOEX
| TOEX | 23 |
TP
| Texas & Pacific | 1 |
TPAX
| TPAX | 15 |
TPDX
| TPDX | 516 |
TPL
| TPL | 1 |
TPOX
| TPOX | 48 |
TSBY
| Great Lakes Central Railroad | 1 |
TSH
| Tshiuetin Rail Transportation Inc | 3 |
TTAX
| TTX Company - Spine Cars | 12 |
TTBX
| TTX Company | 2 |
TTCX
| TTX Company | 62 |
TTDX
| TTX Company - DOD Service Flats | 188 |
TTEX
| TTX Company - Articulated Flat Cars (TOFC/COFC) | 561 |
TTFX
| TTX Company | 5 |
TTHX
| TTX Company - Flat Cars | 267 |
TTI
| Transkentucky Transportation | 1 |
TTIX
| TTX | 5 |
TTJX
| TTX Company-Bulkhead Flats | 66 |
TTMX
| TTX Company | 48 |
TTNX
| TTX Company | 2 |
TTOX
| TTX Company | 11 |
TTSX
| TTX Company | 1 |
TTTX
| TTX Company | 6 |
TTUX
| TTX Company | 7 |
TTVX
| TTX Company | 2 |
TTWX
| TTX Company | 50 |
TTX
| TTX Company | 120 |
TTXT
| TTXT | 1 |
TTXX
| TTX Company | 91 |
TTYX
| TTX Company | 142 |
TTYZ
| TTYZ | 1 |
TTZ
| TTZ | 1 |
TVRM
| Tennessee Valley | 1 |
TVRR
| Tulare Valley Railroad Company | 13 |
TXPK
| TXPK | 1 |
TXTT
| TXTT | 1 |
TYOX
| The Tie Yard Of Omaha Inc. | 3 |
TZPR
| Tazewell & Peoria Railroad | 57 |
UCSX
| International Paper Company | 3 |
UHRR
| UHRR | 1 |
UMP
| Upper Merion and Plymouth Railroad | 4 |
UNK
| UNK | 1 |
UNKN
| UNKN | 1 |
UNPX
| Procor Limited | 1 |
UP
| Union Pacific Railroad Company | 663 |
UPCX
| Clean Harbors Environmental Sciences, Inc. | 22 |
UPMW
| UPMW | 1 |
UPP
| Union Pacific Passenger | 4 |
URHS
| URHS | 1 |
URR
| Union Railroad | 1 |
USA
| USA | 4 |
USAF
| US Air Force | 1 |
USAX
| United States Army | 31 |
USGX
| Union Sugar Co. | 1 |
USN
| United States Navy | 10 |
USSC
| United States Sugar | 1 |
USWX
| USA Waste Services Incorporated | 692 |
UTTX
| TTX Company | 1 |
VALE
| Valley Railroad Company | 1 |
VAPX
| Virginia Power | 1 |
VASR
| VASR | 1 |
VB
| Van Buren Bridge Company (Bangor & Aroostook) | 2 |
VLI
| Valor da Logistica Integrada | 87 |
VRCX
| Vortex Recycling | 4 |
VSR
| Valley & Siletz RR | 48 |
VT
| Virginia & Truckee | 2 |
VTR
| Vermont Railway | 1 |
VTTX
| TTX Company | 100 |
VWCX
| NTL Transportation Inc | 1 |
WAB
| Wabash | 8 |
WC
| Wisconsin Central | 51 |
WCRC
| Washington Central | 5 |
WCRL
| West Chester Railroad Company | 1 |
WCTR
| WCTU Company White City Terminal Railway | 24 |
WE
| Wheeling & Lake Erie | 6 |
WECX
| Westinghouse Electric Corporation | 3 |
WFRX
| WELLS FARGO RAIL CORPORATION | 1 |
WGRR
| WGRR | 1 |
WICT
| Wisconsin & Calumet | 1 |
WM
| Western Maryland | 7 |
WMST
| WMST | 3 |
WMX
| WMX | 1 |
WNDX
| WNDX | 1 |
WNYP
| Western New York and Pennsylvania | 1 |
WP
| Western Pacific | 35 |
WPEX
| Wabash Power Equipment Company | 1 |
WPL
| WPL | 1 |
WPRR
| Willamette and Pacific | 179 |
WPYR
| White Pass & Yukon Route | 15 |
WSLC
| WSLC | 2 |
WSOR
| Wisconsin & Southern | 4 |
WSRR
| WSRR | 1 |
WSX
| Wierton Steel Division National Steel Co | 2 |
WTCX
| Weyerhauser | 6 |
WTTX
| TTX Company | 14 |
WUX
| WUX | 1 |
WVCX
| Mead-Westvaco Corporation | 1 |
WW
| Winchester & Western | 2 |
WWRC
| Wilmington and Western Railroad | 1 |
WX
| WX | 10 |
XPWX
| Expressway | 48 |
XTTX
| TTX Company | 486 |
YARR
| Youngstown and Austintown Railroad | 4 |
YC
| YC | 1 |
YRCX
| YRCX | 1 |
YSL
| YSL | 1 |
YSLR
| Yolo Shortline Railroad Company | 1 |
YVT
| Yakim Valley Transportation Company | 2 |
ZTTX
| TTX Company | 5 |