AA
| Ann Arbor | 22 |
AARX
| Association of American Railroads | 2 |
ABB
| Akron and Barberton Belt Railroad Company | 2 |
ABC
| Atlanta Birmingham & Coast | 2 |
ABRX
| AB Rail Investments Incorporated | 2 |
AC
| Algoma Central | 13 |
ACEX
| Altamont Commuter Express | 1 |
ACJ
| Ashtabula, Carson & Jefferson Scenic | 2 |
ACJR
| Ashtabula Carson Jefferson Railroad Company | 2 |
ACL
| Atlantic Coast Line | 97 |
ACWR
| Aberdeen, Carolina & Western | 5 |
ACY
| Akron, Canton & Youngstown | 5 |
AD
| Atlantic & Danville | 1 |
ADBF
| Adrian and Blissfield Rail Road Company | 4 |
ADCX
| Adolph Coors | 1 |
ADIX
| Adirondack Railway Preservation Society | 3 |
ADN
| Ashley Drew & Northern | 3 |
AFRX
| AF Railway Industries Incorporated | 2 |
AGCR
| Alamo Gulf Coast Railroad Company | 1 |
AGLF
| Knoxville & Holston River Railroad | 1 |
AGR
| Alabama and Gulf Coast | 2 |
AHW
| Fox Valley and Western Limited | 1 |
AIKR
| AIKR | 1 |
AKMD
| Arkansas Midland Railroad Company | 1 |
ALAB
| Alabama Railroad | 5 |
ALL
| America Latina Logistica | 14 |
ALLN
| Allentown and Auburn Railroad | 4 |
ALM
| Arkansas Louisiana and Mississippi Railr | 5 |
ALS
| Alton & Southern Railway | 6 |
AM
| Arkansas & Missouri | 3 |
AMAX
| AMAX Coal Company | 1 |
AMHR
| Landisville Railroad Incorporated | 1 |
AMTK
| Amtrak | 26 |
AMXX
| AGENCE METROPOLITAINE DE TRANSPORT | 1 |
AN
| Apalachicola Northern | 3 |
ANR
| Angelina and Neches River Railroad | 3 |
AO
| Appalachian & Ohio | 1 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
APA
| Apache Railway Company | 1 |
APAC
| APAC | 2 |
APCX
| Allied Lime Company | 1 |
APD
| Albany Port District | 2 |
APNC
| Appanoose County Community Railroad | 1 |
APR
| APR | 1 |
APRX
| Air Products and Chemicals Incorporated | 1 |
APTX
| Air Products and Chemicals Incorporated | 1 |
APXX
| Alberta Prairie Rail Excursions | 1 |
AR
| Aberdeen and Rockfish | 3 |
ARA
| Arcade and Attica Railroad Corporation | 3 |
ARC
| Alexander Railroad | 1 |
ARR
| Alaska Railroad | 28 |
ART
| American Refrigerator Transit Company | 1 |
ARTX
| Artrain | 2 |
ASAB
| Bay Line Railroad LLC | 2 |
ASTA
| ASTA | 1 |
ASV
| Abilene & Smokey Valley | 1 |
AT
| Auto Train | 4 |
ATL
| ATL | 2 |
ATLT
| Austin Todd and Ladd Railroad Company | 3 |
ATN
| Alabama & Tennessee River Railway Llc | 2 |
ATSF
| Atchison Topeka & Santa Fe | 582 |
AUAR
| Austin Area Terminal Railway | 1 |
AUUR
| AUUR | 1 |
AVC
| AVC | 1 |
AVL
| Aroostook Valley Railroad Company | 1 |
AW
| AW | 1 |
AWP
| Atlanta & West Point | 3 |
AWW
| Algiers Winslow and Western Railway | 1 |
AZMX
| Arizona Railway Museum | 1 |
B0
| B0 | 1 |
BA
| Baltimore & Annapolis | 2 |
BAP
| Butte Anaconda & Pacific | 5 |
BAR
| Bangor & Aroostook | 18 |
BAWX
| Babcox & Wilcox | 2 |
BAYL
| Bay Line, LLC | 5 |
BB
| Buckingham Branch | 5 |
BBCX
| ABB Power Generation Incorporated | 2 |
BCER
| BCER | 2 |
BCGA
| BCGA | 1 |
BCH
| Southern Railway of British Columbia Limited | 11 |
BCOL
| Canadian National Railways | 35 |
BCR
| Bay Coast Railroad | 2 |
BCSX
| Buckeye Central Scenic Railroad | 1 |
BDRV
| Belvidere & Delaware Railroad | 7 |
BFC
| Bellefonte Central | 2 |
BGFX
| Barnabus Group Foundation | 1 |
BGRM
| Bluegrass Railroad Museum | 1 |
BH
| Bath & Hammondsport | 2 |
BHS
| Bonhomie & Hattiesburg Southern | 1 |
BK
| BK | 1 |
BLA
| BLA | 1 |
BLE
| Bessemer & Lake Erie | 17 |
BM
| Boston & Maine | 131 |
BML
| Belfast & Mooshead Lake | 7 |
BMRG
| Blue Mountain & Reading | 1 |
BN
| Burlington Northern | 1009 |
BNG
| Blackwell Northern Gateway Railroad Comp | 1 |
BNML
| Burlington Northern (Manitoba) Limited | 1 |
BNSF
| BNSF Railway | 70 |
BO
| Baltimore & Ohio | 523 |
BOCT
| CSX Transportation (Baltimore & Ohio Chicago Terminal Railro | 3 |
BOMX
| B&O Railroad Museum Inc. | 1 |
BOOT
| BOOT | 2 |
BOSC
| BOSC | 1 |
BPRR
| Buffalo and Pittsburgh | 2 |
BRBP
| BRBP | 1 |
BRC
| Belt Railway of Chicago | 24 |
BRMX
| Berkshire Railway Museum Inc | 1 |
BRP
| BRP | 5 |
BRSR
| BRSR | 1 |
BRW
| Black River And Western | 7 |
BS
| Birmingham Southern RR | 2 |
BSOR
| Buffalo Southern | 2 |
BSRY
| BSRY | 1 |
BSV
| BSV | 1 |
BSVY
| Boone & Scenic Valley Railroad | 6 |
BWLX
| Lansing Board of Power & Light | 2 |
BWMX
| BWMX | 1 |
BYCX
| Chelatchie Prairie Railroad | 2 |
C
| C | 1 |
CACV
| Cooperstown and Charlotte Valley | 2 |
CAE
| Chicago Aurora & Elgin | 2 |
CAGY
| Columbus & Greenville Railway | 9 |
CANF
| CANF | 2 |
CASS
| Cass Scenic | 4 |
CBC
| Carbon County Railway | 1 |
CBCW
| CBCW | 1 |
CBDC
| CBDC | 1 |
CBL
| Conemaugh and Black Lick Railroad | 1 |
CBNS
| Cape Breton & Central Nova Scotia Ry | 2 |
CBQ
| Chicago Burlington & Quincy | 204 |
CBRY
| Copper Basin Railway | 2 |
CC
| Chicago Central & Pacific | 21 |
CCCL
| Connecticut Central Railroad Company | 2 |
CCET
| CCET | 1 |
CCGX
| Cando Contracting Limited | 1 |
CCKY
| Chattooga & Chickamauga Railway | 1 |
CCO
| Clinchfield | 7 |
CCRR
| Claremont Concord | 1 |
CCRX
| Cape Cod Railroad | 1 |
CCSR
| CCSR | 1 |
CCT
| Central California Traction Company | 8 |
CDAC
| Canadian American | 1 |
CEI
| Chicago & Eastern Illinois | 12 |
CEIW
| Central Indiana and Western RR Company | 1 |
CERA
| Central RR of Indianapolis | 1 |
CFE
| Chicago, Fort Wayne and Eastern | 2 |
CFMG
| Chemin De Fer De La Matapedia Et Du Golf | 2 |
CFPX
| CFPX | 2 |
CFW
| Caney fork & Western | 1 |
CG
| Central Of Georgia | 24 |
CGW
| Chicago Great Western | 31 |
CGX
| CGX | 3 |
CH
| Calumet & Hecla | 1 |
CHES
| CHES | 3 |
CHP
| Ferrocarriles Nacionales de Mexico | 3 |
CHRX
| The Chesapeake Division | 2 |
CHV
| Chattahoochee Valley Ry | 1 |
CHW
| Chesapeake Western | 4 |
CI
| Cambria and Indiana Railroad Company | 2 |
CIC
| Cedar Rapids & Iowa City | 5 |
CIL
| Chicago Indianapolis & Louisville (Monon | 11 |
CIM
| Chicago And Illinois Midland | 17 |
CIN
| CIN | 1 |
CIND
| Central RR of Indiana | 3 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CISD
| Golden Isles Terminal Railroad | 1 |
CIW
| Chicago & Illinois Western | 1 |
CKIN
| Chesapeke & Indiana | 1 |
CKIS
| CKIS | 1 |
CKRY
| Central Kansas Railway Incorporated | 1 |
CKSI
| Carthage Knightstown and Shirley Railroad | 1 |
CKSR
| CKSR | 1 |
CLC
| Columbia and Cowlitz Railway Company | 2 |
CLIF
| Cliffside Railroad | 1 |
CLK
| Cadillac & Lake City | 1 |
CLP
| Clarendon and Pittsford | 1 |
CLXX
| Carload Express | 1 |
CM
| Central Montana Rail Incorporated | 3 |
CMEF
| CMEF | 1 |
CMER
| CMER | 3 |
CMGN
| Central Michigan RR | 2 |
CML
| Craggy Mountain Line | 1 |
CMN
| Chicago, Madison & Northern Railway | 1 |
CMNW
| Chicago Missouri & Western | 5 |
CMO
| Chicago St Paul Minneapolis & Omaha | 3 |
CMPA
| Madison Railroad Division of City of Mad | 1 |
CMRR
| Catskill Mountain Scenic | 7 |
CMRY
| CMRY | 1 |
CMSL
| Cape May Seashore Line | 2 |
CMST
| CMST | 7 |
CN
| Canadian National Railways | 247 |
CND
| CND | 1 |
CNJ
| Central Rail Road of New Jersey | 32 |
CNJR
| CNJR | 1 |
CNL
| Columbia Newberry & Laurens | 2 |
CNR
| Canada Northern | 2 |
CNSM
| CHICAGO NORTH SHORE & MILWAUKEE RWY | 4 |
CNUR
| C and NC Railroad Corporation | 2 |
CNW
| Chicago & Northwestern | 218 |
CNZR
| Central New England | 1 |
CO
| Chesapeake & Ohio | 489 |
COER
| Crab Orchard & Egyptian | 1 |
COFG
| COFG | 1 |
COH
| COH | 1 |
COP
| City of Prineville Railway | 5 |
COPR
| COPR | 2 |
CP
| Canadian Pacific Railway | 231 |
CPA
| COUDERSPORT & PORT ALLEGHENY RAILROAD | 1 |
CPC
| CPC | 1 |
CPLE
| CPLE | 1 |
CPMY
| Coopersville & Marne Railway | 2 |
CPR
| Canadian Pacific Railway | 3 |
CPRX
| Carolina Power and Light Company | 2 |
CR
| Conrail | 712 |
CRBL
| CRBL | 1 |
CRHA
| Candian Railroad Historical Assocation | 3 |
CRIP
| Chicago Rock Island & Pacific | 144 |
CRL
| Chicago Rail Link | 1 |
CRN
| Norfolk Southern Railway Company | 2 |
CRR
| Clinchfield | 33 |
CRRM
| Colorado Railroad Museum | 1 |
CRRN
| CRRN | 1 |
CRRX
| Canon City and Royal Gorge Railroad LLC | 2 |
CRSX
| Cost Rail Service | 2 |
CS
| Colorado & Southern | 44 |
CSAO
| Conrail Shared Assets | 1 |
CSDX
| Metropolitan Water Reclamation District of Greater Chicago | 1 |
CSL
| Chicago Short Line Railway Company | 6 |
CSOR
| Connecticut Southern | 1 |
CSP
| Camas Prairie RailNet Incorporated | 5 |
CSRR
| Conway Scenic | 3 |
CSRX
| Conway Scenic Railroad | 1 |
CSRY
| CSRY | 1 |
CSS
| Chicago South Shore And South Bend | 33 |
CSX
| CSX Railroad | 262 |
CTN
| Canton Railroad Company | 1 |
CTR
| Clinton Terminal Railroad Company | 3 |
CTS
| Cumbres & Toltec Scenic | 3 |
CV
| Central Vermont | 19 |
CVAR
| Cedar Valley Railroad | 1 |
CW
| Colorado and Wyoming | 4 |
CWC
| Charleston & Western Carolina | 4 |
CWDX
| CWDX | 1 |
CWI
| Chicago and Western Indiana | 2 |
CWL
| Cornwall Railroad | 2 |
CWP
| Chicago West Pullman & Southern | 4 |
CWR
| CWR Incorporated | 2 |
CWW
| CWW | 3 |
CWWR
| Chehalis Western | 5 |
CYRU
| CYRU | 1 |
CZCX
| Crown Zellerbach Corporation | 2 |
DA
| Canadian Pacific Railway (Dominion Atlantic) | 2 |
DAIR
| D and I Railroad Company | 3 |
DAKR
| Dakota Rail Incorporated | 1 |
DB
| Deutsche Bahn | 1 |
DCLR
| Delaware Coast Line RR Co | 2 |
DEVC
| DEVC | 2 |
DGNO
| Dallas Garland & Northeastern | 1 |
DGVR
| DURBIN & GREENBRIER VALLEY RAILROAD INC | 8 |
DH
| Delaware & Hudson | 92 |
DIM
| DIM | 1 |
DIR
| DIR | 2 |
DJRR
| Decatur Junction | 1 |
DL
| Delaware-Lackawanna Railroad Company | 7 |
DLW
| Delaware Lackawanna & Western | 13 |
DLWR
| Depew Lancaster and Western Railroad Com | 1 |
DM
| Detroit & Mackinac | 11 |
DMHX
| Davenport Mammoet LLC | 2 |
DMIR
| Duluth Missabe & Iron Range | 50 |
DMU
| DMU | 1 |
DMVW
| Dakota Missouri Valley and Western Railr | 1 |
DNE
| Duluth and Northeastern Railroad Company | 5 |
DODX
| Department Of Defense | 10 |
DPUX
| DPUX | 1 |
DQE
| De Queen and Eastern Railroad Incorporat | 3 |
DRG
| DRG | 7 |
DRGW
| Denver & Rio Grande Western | 126 |
DRI
| Davenport Rock Island and North Western | 4 |
DRIN
| DRIN | 3 |
DRIR
| Denver Rock Island Railroad | 2 |
DRRV
| DRRV | 3 |
DS
| Durham & Southern | 4 |
DSBR
| DSBR | 2 |
DSL
| Denver & Salt Lake | 3 |
DSLR
| DSLR | 1 |
DSNG
| Durango & Silverton Narrow Gauge Railroa | 2 |
DSRC
| Dakota Southern Railway Company | 1 |
DSRR
| Delta Southern RR | 1 |
DSRX
| Downeast Scenic | 1 |
DSSA
| Duluth, South Shore & Atlantic | 6 |
DT
| Decatur Junction Railway Company | 2 |
DTI
| Detroit Toledo & Ironton | 41 |
DTS
| Detroit & Toledo ShoreLine | 6 |
DTSL
| Detroit & Toledo Shore Line | 5 |
DU
| DU | 1 |
DUPX
| Du Pont De Nemours and Company Incorporated | 2 |
DURR
| DURR | 2 |
DVR
| Devco Railway Cape Breton Development Corporation (Coal Divis | 4 |
DW
| DW | 1 |
DWP
| Duluth Winnipeg & Pacific | 13 |
DYRX
| DYRX | 1 |
E
| E | 1 |
EBPX
| Empire Builder Private Cars | 2 |
EBT
| East Broad Top | 3 |
ECRM
| ECRM | 2 |
EEC
| East Erie Commercial Railroad | 2 |
EFVM
| Estrada de Ferro Vitoria-Minas | 3 |
EIRE
| EIRE | 1 |
EIRR
| Eastern Idaho Railroad Incorporated | 2 |
EJE
| Elgin Joliet and Eastern | 50 |
EL
| Erie Lackawanna | 113 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
EMCO
| EMCO | 4 |
EN
| Esquimalt & Nanaimo | 1 |
ENR
| E and N Railway Company Limited | 1 |
EPRR
| EPRR | 1 |
EPRY
| East Penn Railway | 3 |
EPTC
| East Portland Traction | 1 |
ER
| Eesti Raudtee | 1 |
ERIE
| Erie Railroad | 50 |
ERR
| Edaville Railroad Corp | 4 |
ESHR
| Eastern Shore Railroad | 1 |
ESNA
| Eureka Springs and North Arkansas | 2 |
ESPN
| East Penn Railroad | 1 |
ETL
| Essex Terminal Railway Company | 4 |
ETMX
| Etarco Rail Services Inc. | 1 |
EUKA
| EUKA | 1 |
EV
| Everett Railroad | 2 |
EVRC
| EVRC | 1 |
EVWR
| Evansville Western Railroad Inc | 1 |
EYP
| Edmonton, Yukon and Pacific | 1 |
FAMI
| FAMI | 1 |
FBJX
| FBJX | 1 |
FC
| Fulton County Railroad Incorporated | 1 |
FCCA
| FCCA | 1 |
FCCM
| Compania de Ferrocarriles Chiapas Mayab | 1 |
FCCX
| Foxley Cattle Company | 2 |
FCEN
| Florida Central | 5 |
FCG
| FCG | 1 |
FCM
| Ferrocarriles Nacionales de Mexico | 3 |
FCP
| Ferrocarril Del Pacifico | 18 |
FCRK
| Falls Creek RR | 1 |
FCS
| FCS | 1 |
FCWR
| FCWR | 1 |
FDDM
| Fort Dodge Des Moines & Southern | 1 |
FEC
| Florida East Coast | 7 |
FEPA
| FEPA | 3 |
FGCX
| Florida Gulf Coast Railroad Museum Incorporated | 1 |
FGLK
| Finger Lakes Railway | 4 |
FIT
| FIT | 1 |
FJG
| Fonda Johnstown & Gloversville RR | 2 |
FJR
| FJR | 1 |
FLNX
| R.P. Flynn Incorporated d/b/a Ohio Railway Supply | 2 |
FLSX
| Great Miami Incorporated | 1 |
FLWB
| FLWB | 2 |
FMRC
| FarmRail | 1 |
FN
| FN | 1 |
FNM
| Ferrocarriles Nacionales de Mexico | 27 |
FNP
| FNP | 2 |
FRM
| FRM | 1 |
FRVR
| Fox River Valley Railroad | 2 |
FRVT
| Fore River Transportation Corporation | 1 |
FSRR
| FerroSur | 4 |
FWCR
| Florida West Coast Railroad Incorporated | 4 |
FWD
| Fort Worth & Denver | 35 |
FWRY
| Fillmore Western Railway Company | 1 |
FXE
| Ferromex | 39 |
GA
| Georgia Railroad | 14 |
GAAB
| Georgia and Alabama Division South Carolina Central Railroad | 1 |
GAN
| GAN | 1 |
GANO
| Georgia Northern Railway Company | 1 |
GARR
| GARR | 1 |
GASC
| Georgia, Ashburn, Sylvester & Camilla Ry | 1 |
GBRY
| Gettysburg Railway. | 1 |
GBW
| Green Bay & Western | 19 |
GC
| Georgia Central | 1 |
GCLX
| Gold Coast Limited | 1 |
GCRR
| GCRR | 3 |
GCRW
| GCRW | 1 |
GDLK
| GDLK | 1 |
GECX
| General Electric Company | 2 |
GEGX
| GE Gas Turbine | 2 |
GEOR
| GEOR | 1 |
GEXR
| Goderich & Exeter | 1 |
GF
| Georgia & Florida | 7 |
GFRR
| Georgia and Florida Railnet | 1 |
GITM
| Golden Isle Terminal RR | 1 |
GJ
| GJ | 2 |
GLLX
| Great Lakes Locomotive | 2 |
GLRX
| Georgetown Loop Railroad Incorporated | 1 |
GMO
| Gulf Mobile & Ohio | 50 |
GMRC
| Green Mountain RR | 3 |
GMRR
| GMRR | 1 |
GMRY
| Great Miami | 2 |
GMSR
| Kansas City Southern | 1 |
GN
| Great Northern | 129 |
GNA
| Graysonia Nashville & Ashdown | 1 |
GNBC
| Grainbelt Corporation | 1 |
GNRR
| Georgia Northeastern | 2 |
GNRX
| GNRX | 1 |
GNW
| GNW | 2 |
GNWR
| Genesee and Wyoming Railroad Company | 4 |
GR
| Grand Rapids Eastern Railroad Incorporated | 2 |
GRLW
| Greenville & Western Railway Company, LLC | 1 |
GRNR
| Grand River Railway Company | 1 |
GRPX
| CIT Group/Capital Finance, Inc | 3 |
GRRM
| GRRM | 1 |
GRRR
| GRRR | 1 |
GRRY
| GRRY | 1 |
GSM
| Great Smokey Mountains Railway | 7 |
GSMR
| Great Smoky Mountains | 6 |
GSOR
| Indiana Hi-Rail Corporation | 1 |
GSWR
| Georgia Southwestern | 1 |
GT
| Grand Trunk Railway | 7 |
GTLX
| Great Lakes Railcar, Inc. | 1 |
GTR
| Great River Railroad; d/b/a Rosedale-Bolivar County Port Comm | 1 |
GTRA
| Golden Triangle Railroad | 2 |
GTW
| Grand Trunk Western | 157 |
GU
| Grafton and Upton Railroad Company | 1 |
GVNW
| GVNW | 3 |
GVRX
| Grapevine Vintage Railroad | 2 |
GVSR
| Galveston Railroad L.P. | 3 |
GVT
| GVT | 1 |
GW
| GW | 1 |
GWAX
| Railroad Salvage and Restoration Incorporated | 1 |
GWR
| Great Western Railway Company | 5 |
GWWD
| Greater Winnipeg Water District | 5 |
GWWR
| Gateway Western | 3 |
HBRR
| Huckleberry Railroad | 1 |
HBT
| Houston Belt & Terminal | 2 |
HBTM
| HBTM | 3 |
HCR
| HCR | 1 |
HEPX
| Ontario Hydro | 1 |
HESR
| Huron and Eastern | 2 |
HEWT
| HEWT | 1 |
HFS
| HFS | 1 |
HMIX
| Henkels and McCoy Inc | 2 |
HOBO
| HOBO | 2 |
HOG
| Heart of Georgia | 3 |
HOIN
| HOIN | 4 |
HOS
| Hoosier Southern Railroad | 2 |
HRRC
| Housatonic Railroad Company | 2 |
HRT
| Hartwell RR | 1 |
HV
| HV | 2 |
HVR
| HVR | 1 |
HVRM
| HVRM | 1 |
HVRR
| Hocking Valley | 1 |
HVRX
| Heber Valley Historic Railroad | 3 |
HVSR
| Hocking Valley Scenic | 3 |
HZRX
| HZRX | 1 |
IAIS
| Iowa Interstate | 3 |
IANR
| Iowa Northern Ry | 5 |
IANW
| Iowa Northwestern | 1 |
IATR
| Iowa Traction Railroad Company | 3 |
IBCX
| Indiana Box Car Corporation | 4 |
IC
| Illinois Central | 157 |
ICC
| ICC | 1 |
ICG
| Illinois Central Gulf | 209 |
IDOX
| U.S. Dept. of Energy Idaho Operations Office | 1 |
IHB
| Indiana Harbor Belt | 58 |
IHCR
| IHCR | 1 |
IHRC
| Indiana Hi Rail | 2 |
IL
| IL | 1 |
IM
| IM | 1 |
IMRL
| I&M Rail Link | 3 |
IMRR
| Illinois Midland Railroad | 1 |
IN
| Indiana Northeastern | 1 |
INCO
| INCO | 1 |
INLX
| Incoal Company | 1 |
INPR
| Idaho Northern and Pacific Railroad | 4 |
INR
| INR | 1 |
INRD
| Indiana Railroad | 7 |
INT
| Norfolk Southern Railway Company | 5 |
IOCR
| Indiana and Ohio Central Railroad | 1 |
IORY
| Indiana & Ohio | 4 |
IR
| Illinois Railnet | 1 |
IRM
| Indiana Railroad Museum | 1 |
IRN
| Ironton RR | 2 |
IRR
| IRR | 1 |
ISCX
| ISC Incorporated | 2 |
ITC
| Illinois Terminal Railroad | 10 |
JCTX
| JCTX | 1 |
JDHX
| JD Heiskell | 1 |
JEMX
| JEMX | 1 |
JESX
| James E Strates Shows | 1 |
JFSX
| Jfs Railcar | 21 |
JJRR
| J and J Railroad | 3 |
JNSX
| JNS Marketing Company Coastline Rail Service Division | 1 |
JPBX
| Joint Powers Board (CalTrain) | 2 |
JRSX
| J.R. Simplot Company | 1 |
JTC
| JTC | 1 |
JTCX
| Juniata Terminal | 1 |
JV
| JV | 2 |
JWR
| JWR | 2 |
JWRX
| Alabama Power Company | 2 |
KBS
| KBS | 1 |
KBSR
| Kankakee Beaverville and Southern Railroad Company | 1 |
KCC
| KCC | 6 |
KCCX
| Kennecott Utah Copper Corporation | 8 |
KCDX
| Eastman Kodak Company | 1 |
KCS
| Kansas City Southern | 69 |
KCSM
| Kansas City Southern De Mexico | 4 |
KCT
| Kansas City Terminal | 3 |
KHR
| KHR | 1 |
KJR
| Kiski Junction Railroad | 5 |
KJRR
| KJRR | 1 |
KKRR
| Knox and Kane Railroad Company | 3 |
KLSC
| Kalamazoo Lake Shore and Chicago Railway | 3 |
KMC
| KMC | 1 |
KMRY
| KMRY | 1 |
KOG
| Kansas Oklahoma & Gulf | 1 |
KRCX
| R.M. Johnson Company, Inc. | 1 |
KRL
| Kasgro Rail Lines | 11 |
KRM
| Kentucky Railway Museum | 1 |
KRR
| Kiamichi | 1 |
KSCX
| KAPSTONE CHARLESTON KRAFT, LLC | 2 |
KT
| Kentucky and Tennessee Railway Company | 1 |
KVN
| KVN | 1 |
KWT
| KWT Railway | 1 |
KWUX
| Siemens Power Corporation | 1 |
KXHR
| Knoxville & Holston River RR | 1 |
LA
| Lousiana and Arkansas | 2 |
LACK
| LACK | 2 |
LAL
| Livonia Avon & Lakeville | 2 |
LANO
| Penn Eastern Rail Lines Incorporated | 1 |
LASB
| Lackawaxen and Stourbridge | 1 |
LASL
| LASL | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 3 |
LBRX
| LBRX | 1 |
LC
| Lancaster & Chester | 1 |
LCM
| Lake Champlain & Moriah | 1 |
LCS
| LCS | 2 |
LCSR
| LCSR | 1 |
LCTR
| LCTR | 1 |
LDRR
| Louisiana and Delta Railroad Incorporated | 1 |
LEFC
| Lake Erie, Franklin & Claron | 2 |
LEHI
| LEHI | 2 |
LERX
| PSI Energy Incorporated | 1 |
LGB
| LGB | 1 |
LGEX
| L.G. Everist Incorporated | 3 |
LHE
| LHE | 1 |
LHR
| Lehigh & Hudson River | 12 |
LI
| Long Island Rail Road Company | 60 |
LINC
| Lewis and Clark Railway Company | 2 |
LIRC
| Louisville & Indiana | 1 |
LIRR
| Long Island Railroad | 9 |
LL
| Lionel Lines | 1 |
LLTX
| LLTX | 2 |
LM
| Litchfield & Madison | 1 |
LMIX
| Loram Maintenance of Way Inc. | 19 |
LMS
| LMS | 1 |
LN
| Louisville & Nashville | 290 |
LNAL
| Louisville New Albany and Corydon Railroad | 1 |
LNE
| Lehigh and New England Ry | 9 |
LNIC
| LNIC | 1 |
LNO
| Laona and Northern Rwy | 2 |
LNW
| Louisiana & Northwestern | 3 |
LOFX
| LOFX | 1 |
LORA
| LORA | 1 |
LPRX
| LPRX | 1 |
LPS
| LPS | 2 |
LR
| LR | 1 |
LRR
| Little River Railroad | 4 |
LRRE
| LRRE | 1 |
LRS
| Laurinburg and Southern | 2 |
LSBC
| LSBC | 2 |
LSI
| Lake Superior and Ishpeming Railroad | 6 |
LSMS
| Lake Shore Michigan Southern Railroad | 3 |
LSMX
| Andersons - Railgroup | 1 |
LSRC
| Lake State Railway Company | 1 |
LSRX
| Lake Superior Railroad Museum | 3 |
LSTT
| Lake Superior Terminal Transfer | 5 |
LSX
| LSX | 3 |
LTEX
| Larry's Truck Electric | 1 |
LTSR
| LTSR | 1 |
LV
| Lehigh Valley | 53 |
LVRC
| Lamoille Valley | 2 |
LVRR
| Lycoming Valley | 1 |
LW
| Louisville and Wadley Railway Company | 1 |
MAA
| Magma Arizona Railroad Company | 1 |
MALX
| Mid-America Locomotive and Car Repair Incorporated | 1 |
MAMX
| Mammoet USA, Inc | 3 |
MARR
| MARR | 1 |
MB
| Meridian & Bigbee | 7 |
MBA
| MBA | 1 |
MBRX
| MBRX | 1 |
MBSE
| MBSE | 1 |
MBT
| MBT | 1 |
MBTA
| Massachusetts Bay Transit Authority | 4 |
MC
| Mass Coastal | 2 |
MCC
| MCC | 1 |
MCCX
| Mt. Vernon Coal Transfer Company (Ind.) | 1 |
MCER
| Massachusetts Central Railroad | 1 |
MCR
| McCloud Railway Company | 2 |
MCRR
| Monongahela Connecting RR Company | 2 |
MCRX
| Marcus Rail Transport LLC | 1 |
MCSA
| Moscow Camden and San Augustine Railroad | 1 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 6 |
MDDE
| Maryland and Delaware Railroad | 1 |
MDS
| Meridian Southern Railway, LLC | 1 |
ME
| Morristown & Erie Railroad | 8 |
MEC
| Maine Central | 75 |
MERR
| MERR | 3 |
MESX
| Mears/CPG Incorporated | 2 |
METW
| Municipality of East Troy Wisc. | 1 |
METX
| METRA | 3 |
MGA
| Monongahela RR | 15 |
MH
| Mount Hood Railroad | 4 |
MHWA
| Mohawk Adirondack and Northern Railroad | 1 |
MICH
| MICH | 1 |
MICO
| MICO | 2 |
MIDH
| Middletown and Hummelstown RR Company | 2 |
MIDL
| MIDL | 1 |
MIL
| MIL | 1 |
MILW
| Milwaukee Road | 215 |
MISS
| Mississippian Railway Cooperative Incorporated | 1 |
MJ
| Manufacturers' Junction Railway Company | 1 |
MKIX
| Morrison-Knudsen | 1 |
MKT
| Missouri-Kansas-Texas | 78 |
MLW
| MLW | 1 |
MM
| MM | 1 |
MMA
| Montreal, Maine & Atlantic | 5 |
MMID
| Maryland Midland | 1 |
MNA
| Missouri and Northern Arkansas | 1 |
MNC
| Missouri North Central RR | 2 |
MNCR
| Metro North Commuter Railway | 1 |
MNCW
| Metro-North Commuter Railroad | 7 |
MNCX
| Minnesota Corn Processors Incorporated | 1 |
MNE
| Manistee & North East | 2 |
MNGR
| Maine Narrow Gauge RR Museum | 2 |
MNJ
| Middletown & New Jersey Railroad | 2 |
MNN
| Minnesota Northern Railroad Incorporated | 1 |
MNR
| MNR | 1 |
MNRR
| Modoc Northern Railroad Company | 1 |
MNS
| Minneapolis Northfield & Southern | 14 |
MNTX
| Minnesota Transportation Museum, Inc. | 5 |
MNVA
| Minnesota Valley | 1 |
MO
| MO | 3 |
MON
| Monon Route | 24 |
MOPA
| MOPA | 4 |
MOWC
| MOWC | 1 |
MP
| Missouri Pacific | 403 |
MPA
| Maryland and Pennsylvania Railroad | 2 |
MPCX
| Michels Corporation | 1 |
MPEX
| Motive Power Industries | 1 |
MQT
| Marquette Rail | 1 |
MR
| McCloud Railway Company | 2 |
MRA
| MRA | 1 |
MRHF
| MRHF | 3 |
MRL
| Montana Rail Link | 14 |
MRLX
| Mid America Rail Car Leasing | 1 |
MRMZ
| MRMZ | 1 |
MRPS
| MRPS | 3 |
MRR
| Mid Atlantic Railroad | 2 |
MRS
| Manufacturers Railway | 2 |
MRSL
| MRS Logistica | 1 |
MRSR
| Mount Rainier Scenic | 2 |
MRWW
| MRWW | 1 |
MRYM
| Monticello Railway Museum | 6 |
MSDR
| Knoxville & Holston River Railroad | 1 |
MSE
| Mississippi Export Railroad Company | 6 |
MSHC
| MSHC | 1 |
MSN
| Meeker Southern | 1 |
MSO
| Michigan Southern | 3 |
MSRC
| Kansas City Southern | 5 |
MSRW
| Mississippian Railway Cooperative Incorporated | 2 |
MSTL
| Minneapolis & St Louis | 18 |
MSW
| MSW | 1 |
MTA
| NYC Transit | 1 |
MTFR
| MTFR | 1 |
MTL
| MTL | 1 |
MTR
| Montour RR | 3 |
MTW
| Marinette Tomahawk & Western | 2 |
MV
| MV | 1 |
MWE
| MWE | 1 |
MWRR
| Montana Western Railway Company Incorporated | 1 |
NAP
| Narragansett Pier Railroad Company | 1 |
NAR
| Northern Alberta Railways | 2 |
NARM
| Northern Alabama Railway Museum | 1 |
NB
| NB | 4 |
NBEC
| New Brunswick East Coast Railway Company | 1 |
NBN
| Nicolet, Badger & Northern | 2 |
NBSR
| New Brunswick Southern Railway Company L | 2 |
NC
| CSX Transportation Incorporated | 2 |
NCB
| Nevada Copper Belt | 1 |
NCBX
| New Century Rail Transport LLC | 1 |
NCIR
| New Castle Industrial Railroad | 1 |
NCNG
| NCNG | 1 |
NCRA
| Northern Central Railcar Association | 1 |
NCRC
| Nebraska Central | 2 |
NCRR
| NCRR | 1 |
NCRY
| Northern Central Railway | 1 |
NCSL
| Nashville Chattanooga & St Louis | 5 |
NCST
| NCST | 6 |
NDEM
| NDEM | 108 |
NEC
| NEC | 1 |
NECR
| New England Central | 1 |
NEWH
| NEWH | 1 |
NF
| NF | 1 |
NFD
| Norfolk, Franklin and Danville | 2 |
NGA
| NGA | 1 |
NH
| New Haven | 31 |
NHB
| National Harbours Board | 1 |
NHI
| NHI | 2 |
NHIR
| New Hope & Ivyland | 2 |
NHRR
| New Hope and Ivyland Rail Road | 5 |
NHVR
| New Hope Valley Railroad | 1 |
NHVT
| New Hampshire and Vermont Railroad Company | 3 |
NICX
| Echo freight | 1 |
NIRC
| NIRC | 1 |
NJ
| Delaware and Hudson Railway Company Incorporated | 3 |
NJR
| NJR | 3 |
NJT
| New Jersey Transit | 5 |
NJTR
| NJ Transit Rail Operations | 4 |
NKP
| Nickel Plate | 89 |
NLG
| Kansas City Southern Railway Company (North Louisiana & Gulf) | 1 |
NLR
| NLR | 1 |
NM
| National Railways of Mexico | 16 |
NN
| Northern Nevada Railroad Corporation | 3 |
NNRM
| NNRM | 2 |
NO
| NO | 1 |
NOCN
| NOCN | 1 |
NOEL
| NOEL | 1 |
NOGN
| NOGN | 1 |
NOKL
| Northwestern Oklahoma | 1 |
NOLR
| New Orleans Lower Coast Railroad Incorpo | 1 |
NP
| Northern Pacific | 98 |
NPBL
| Norfolk and Portsmouth Belt Line | 2 |
NPR
| Northern Plains Railroad Incorporated | 1 |
NPRX
| Yakima Interurban Lines Assn. | 1 |
NRHX
| National Railway Historical Society | 1 |
NRI
| Nebkota Railway Incorporated | 1 |
NS
| Norfolk Southern | 176 |
NSE
| NSE | 1 |
NSHR
| North Shore | 1 |
NSRM
| NSRM | 2 |
NVRR
| NAPA Valley Railroad Company | 2 |
NW
| Norfolk & Western | 410 |
NWP
| Northwestern Pacific Railroad Company | 2 |
NYA
| New York and Atlantic Railroad | 2 |
NYC
| New York Central | 92 |
NYCX
| New York Central Lines LLC | 1 |
NYD
| New York Dock | 1 |
NYGL
| New York and Greenwood Lake Railroad | 4 |
NYLE
| New York and Lake Erie Railroad Company | 3 |
NYOW
| New York, Ontario & Western | 13 |
NYSW
| New York Susquehanna & Western | 12 |
OCE
| Oregon California & Eastern | 9 |
OCG
| OCG | 1 |
OCNR
| OCNR | 1 |
OCRR
| Ottawa Central Railway | 1 |
OCSR
| OCSR | 1 |
OCTL
| Oil Creek and Titusville Lines | 22 |
ODCX
| Old Dominion Chapter | 1 |
ODRM
| Old Dominion Chapter | 1 |
OE
| Oregon Electric | 1 |
OHCR
| Ohio Central | 14 |
OHIC
| Ohi-Rail Corporation | 3 |
OHPA
| Ohio and Pennsylvania Railroad Company | 1 |
OKRX
| Oklahoma Railway Museum Ltd | 4 |
OMID
| Ontario Midland Railroad Corporation | 1 |
ON
| ON | 1 |
ONT
| Ontario Northland Railway | 12 |
ONW
| Oregon & Northwestern | 1 |
OPE
| Oregon Pacific & Eastern | 1 |
OPR
| Oregon Pacific | 4 |
ORLC
| ORLC | 2 |
ORW
| ORW | 1 |
OSCR
| OSCR | 1 |
OSL
| OSL | 1 |
OSR
| Ontario Southland Rwy | 1 |
OSRX
| Ontario Southland Railway Incorporated | 3 |
OTVR
| Otter Tail Valley Railroad Company | 1 |
OVR
| Otter Valley Railroad | 1 |
OW
| OW | 1 |
OWTX
| Oneida & Western Transportation | 2 |
OZRR
| OZRR | 1 |
PA
| PA | 1 |
PAC
| PAC | 1 |
PAL
| Paducah & Louisville | 16 |
PARY
| PARY | 1 |
PBNW
| PBNW | 1 |
PC
| Penn Central | 264 |
PCLM
| PCLM | 1 |
PCRY
| PCRY | 1 |
PCY
| Pittsburgh Chartiers & Youghiogheny | 1 |
PDC
| PDC | 1 |
PE
| Peoria & Eastern | 9 |
PERX
| Perini Corporation | 1 |
PESX
| Potomac Eagle Scenic Railroad | 1 |
PGE
| Pacific Great Eastern | 9 |
PGR
| Progressive Rail, Inc | 2 |
PHD
| Port Huron and Detroit Railroad Company | 4 |
PHNX
| Phn Llc | 4 |
PICK
| Pickens Railway | 1 |
PJRL
| Penn Jersey Rail Lines Incorporated | 1 |
PLC
| PLC | 2 |
PLE
| Pittsburgh & Lake Erie | 31 |
PLLX
| Plymouth And Lincoln Railroad Corp | 4 |
PLRR
| PLRR | 1 |
PLW
| PL and W Railroad Incorporated | 2 |
PM
| Pere Marquette | 23 |
PNER
| PNER | 1 |
PNLX
| PNLX | 1 |
PNR
| Panhandle Northern Railroad Company | 1 |
PNSX
| Chem-Nuclear Systems LLC | 1 |
PNWC
| PNWC | 1 |
PNWR
| Portland and Western Railroad Incorporat | 5 |
POC
| POC | 1 |
POHC
| Pittsburgh & Ohio Central | 1 |
POTB
| Port of Tillamook Bay | 1 |
POVA
| Pend Oreille Valley Railroad | 1 |
PP
| PP | 2 |
PPU
| Tazewell & Peoria Railroad | 2 |
PR
| Palmetto Railways | 1 |
PRCX
| Prairie Coal Limited | 1 |
PREX
| Pioneer Rail Equipment | 6 |
PRPA
| PRPA | 1 |
PRR
| Pennsylvania Railroad | 249 |
PRSL
| Pennsylvania Reading Seashore | 3 |
PRTD
| Portland Traction | 1 |
PS
| Pittsburg and Shawmut Railroad Company | 9 |
PSAP
| Puget Sound and Pacific Railroad Company | 1 |
PSBR
| PSBR | 1 |
PSR
| Pittsburg and Shawmut Railroad Incorporated | 2 |
PSRR
| PSRR | 2 |
PSTR
| PSTR | 6 |
PT
| Peninsula Terminal Company | 1 |
PTM
| Portland Terminal | 3 |
PTMX
| Pittsburgh Transportation Museum Society | 1 |
PTRR
| Port Townsend Railroad Incorporated | 1 |
PVRR
| Pioneer Valley Railroad Company Incorporated | 3 |
PVS
| Pecos Valley Southern Railway Company | 1 |
PVT
| PVT | 1 |
PW
| Providence and Worcester | 14 |
PWRC
| P&W Railfan Club | 1 |
PWV
| Pittsburgh & West Virginia | 5 |
QGRY
| Quebec Gatineau Railway Incorporated | 3 |
QNSL
| Quebec, North Shore and Labrador | 5 |
QOKC
| QOKC | 1 |
RAMX
| Rail Merchants International | 3 |
RANX
| RANX | 1 |
RAYO
| Rayonier | 1 |
RBMN
| Reading Blue Mountain & Northern | 9 |
RCBT
| RCBT | 2 |
RCL
| RCL | 1 |
RCLX
| Macquarie Rail Inc | 8 |
RCPX
| Railcar Limited | 1 |
RDG
| Reading Railroad | 79 |
READ
| READ | 1 |
RESX
| Rescar | 1 |
RFFS
| RFFS | 1 |
RFP
| Richmond Fredericksburg & Potomac | 26 |
RGEX
| Royal Gorge Industries LLC | 2 |
RGS
| Rio Grande Southern | 5 |
RGW
| RGW | 1 |
RHSX
| CentralNew York Chapter NRHS | 3 |
RI
| RI | 22 |
RJ
| RJ | 1 |
RJCC
| R.J. Corman Railroad/Kentucky Lines | 2 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 1 |
RJCR
| RJ Corman | 3 |
RJE
| RJE | 1 |
RLK
| RailAmerica Ottawa Valley Railway | 1 |
RLTX
| Randolph L. Johnston | 1 |
RM
| RM | 1 |
RNCX
| North Carolina Dept Of Transportation | 1 |
RNDX
| American Railcar Leasing, LLC | 1 |
ROCH
| ROCH | 1 |
ROCK
| Rock Island | 4 |
RPCX
| Railroad Passenger Car Numbering Bureau | 18 |
RPPX
| Midwest Generation LLC | 2 |
RPRC
| Richmond Pacific Railroad Corporation | 2 |
RR
| Raritan River | 6 |
RRCX
| Radar Railcar Incorporated | 1 |
RRPX
| RR Power Leasing LLC | 3 |
RRRR
| Rock and Rail Incorporated | 1 |
RRW
| Rockton Rion & Western | 1 |
RRX
| RRX | 2 |
RS
| Roberval and Saguenay Railway Company | 1 |
RSCX
| Republic Steel | 1 |
RSMX
| Reserve Mining | 6 |
RSP
| Roscoe Snyder and Pacific Railway | 2 |
RSR
| Rochester and Southern Railroad | 1 |
RT
| River Terminal Railway Company | 1 |
RTEX
| Rail Trusts Equipment Incorporated | 1 |
RUT
| Vermont Railway Incorporated | 8 |
RUTL
| RUTL | 3 |
SA
| Savannah & Atlanta | 4 |
SAL
| Seaboard Air Line | 42 |
SALV
| SALV | 1 |
SAN
| Sandersville | 1 |
SARX
| Southern Appalachia RR Museum | 1 |
SAS
| South African Railways | 48 |
SBC
| Ferrocarril Sonora Baja California | 7 |
SBD
| Seaboard System | 184 |
SBVR
| South Branch Valley Rail Road | 1 |
SC
| SC | 1 |
SCAX
| SOUTHERN CALIFORNIA REGIONAL RAIL AUTHORITY | 1 |
SCBG
| Santa Cruz Big Trees & Pacific | 1 |
SCIH
| South Chicago & Indiana Harbor Railway C | 2 |
SCL
| Seaboard Coast Line | 343 |
SCL/
| SCL/ | 1 |
SCRM
| SCRM | 1 |
SCS
| SCS | 1 |
SCSX
| CIT Group/Capital Finance, Inc | 1 |
SCTR
| South Central Tennessee | 1 |
SDAE
| San Diego & Arizona Eastern | 2 |
SDB
| SDB | 1 |
SDIV
| San Diego and Imperial Valley | 2 |
SDRR
| SDRR | 1 |
SEAB
| SEAB | 2 |
SEK
| SEK | 1 |
SEKR
| Southeast Kansas Railroad Company | 1 |
SERA
| Sierra Northern Railway | 3 |
SFLR
| Shore Fast Line Incorporated | 1 |
SFS
| Santa Fe Southern | 5 |
SFSO
| SFSO | 1 |
SFSR
| SFSR | 4 |
SGL
| SGL | 1 |
SGLR
| Seminole Gulf | 1 |
SHAW
| SHAW | 2 |
SHOV
| SHOV | 1 |
SHRR
| SHRR | 3 |
SHXX
| SHXX | 1 |
SI
| Union Pacific Railroad Company (Spokane International) | 8 |
SIH
| SIH | 1 |
SIMP
| SIMP | 2 |
SIMS
| SIMS | 1 |
SIRR
| Southern Industrial Railroad | 2 |
SIRT
| Staten Island Rapid Transit | 3 |
SJGI
| SJGI | 2 |
SJVR
| San Joaquin Valley RR | 1 |
SL
| Salt Lake Southern RR | 1 |
SL-S
| SL-S | 1 |
SLC
| San Luis Central Railroad Company | 1 |
SLCC
| St. Louis Car Company | 1 |
SLGG
| Progress Rail Services Corporation | 1 |
SLGW
| Salt Lake Garfield and Western Railway Company | 1 |
SLHX
| SLHX | 1 |
SLIM
| St Louis, Iron Mountain & Southern | 4 |
SLRL
| SLRL | 1 |
SLRS
| SMS Rail Service Incorporated | 8 |
SLSF
| Saint Louis-San Francisco | 131 |
SM
| St. Marys Railroad | 5 |
SMA
| San Manuel Arizona Railroad Company | 1 |
SMAR
| SMAR | 1 |
SMPX
| Commercial Metal Company | 1 |
SMRS
| Springfield (MO) Railway Services | 3 |
SMV
| Santa Maria Valley Railroad Company | 4 |
SMVR
| SMVR | 4 |
SN
| Sacramento Northern | 9 |
SNC
| Saratoga & North Creek Railway | 2 |
SNCT
| Seattle & North Coast R.R. Co. | 1 |
SNLD
| SNLD | 1 |
SNY
| SNY | 1 |
SOO
| Soo Line | 185 |
SOU
| Southern | 405 |
SP
| Southern Pacific | 471 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 4 |
SPCX
| Qwest Communications Corporation | 9 |
SPD
| SPD | 1 |
SPS
| Spokane Portland & Seattle | 20 |
SQVR
| Sequatchie Valley Railroad | 1 |
SR
| Kansas City Southern | 1 |
SRBC
| SRBC | 1 |
SRC
| Strasburg Railroad | 4 |
SRN
| Sabine River & Northern | 1 |
SRNJ
| Southern Railroad Company of New Jersey | 5 |
SROX
| U.S. DOE, Savannah River Operations | 1 |
SRR
| SRR | 1 |
SRRL
| SRRL | 3 |
SRT
| SRT | 2 |
SRY
| Southern Railway of British Columbia Lim | 4 |
SRYC
| Sierra Railway Company of California | 1 |
SSLV
| Southern San Luis Valley Railroad | 1 |
SSRH
| SSRH | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 64 |
SSX
| Southern States Phosphate and Fertilizer Co. | 1 |
STC
| STC | 1 |
STJG
| STJG | 3 |
STMA
| St. Maries River Railroad Company | 3 |
SV
| Shenandoah Valley Railroad | 1 |
SVRY
| SVRY | 2 |
SW
| Southwestern Railroad Company | 1 |
SWKR
| San Pedro and Southwestern Railway Compa | 1 |
TAFH
| TAFH | 1 |
TAG
| Tennessee, Alabama & Georgia | 1 |
TART
| TART | 1 |
TC
| Temple & Central Texas | 3 |
TC1
| Tennessee Central | 3 |
TCG
| Tucson Cornelia and Gila Bend Railroad Company | 2 |
TCKR
| Turtle Creek Industrial RR.Incorporated | 2 |
TCRX
| Tennessee Central Railway Musem | 5 |
TCWR
| Twin Cities and Western | 1 |
TEG
| TEG | 1 |
TENN
| Tennessee Railway Company | 4 |
TERW
| TERW | 1 |
TEXX
| TEXX | 3 |
TF
| Tallulah Falls Ry. Co | 2 |
TFM
| Kansas City Southern De Mexico | 11 |
TFTX
| Tifton Terminal Railway Museum | 2 |
THB
| Toronto Hamilton & Buffalo | 10 |
THSX
| New York, Susquehanna & Western Rwy. | 1 |
TIOC
| Tioga Central | 1 |
TLEW
| TLEW | 1 |
TM
| Texas-Mexican | 4 |
TMBL
| Tacoma Municipal Belt Line Railway | 4 |
TMRX
| Tierra Madre Consultants Inc | 1 |
TOE
| Texas Oklahoma and Eastern RR Company | 3 |
TOT
| TOT | 1 |
TOV
| TOV | 1 |
TOYX
| TOYX | 3 |
TP
| Texas & Pacific | 10 |
TPL
| TPL | 1 |
TPLC
| TPLC | 1 |
TPP
| TPP | 1 |
TPW
| Toledo Peoria & Western | 17 |
TRC
| Trona Railway Company | 2 |
TRHA
| TRHA | 1 |
TRMW
| City of Tacoma d/b/a Tacoma Rail Mountai | 1 |
TRRA
| Terminal RR of St Louis | 20 |
TRRX
| TRRX | 1 |
TRRY
| Trillium Railway Co. Ltd. | 1 |
TS
| Texas Southern | 2 |
TSB
| TSB | 1 |
TSE
| Texas South-Eastern Railroad Company | 1 |
TSHX
| Tshiuetin Rail Transportation, Inc. | 1 |
TSR
| Texas State Railroad | 1 |
TSRR
| Tennessee Southern | 2 |
TSU
| Tulsa-Sapulpa Union Railway | 1 |
TSWR
| Toppenish, Simcoe & Western Railroad | 1 |
TT
| Toledo Terminal | 5 |
TTAX
| TTX Company - Spine Cars | 1 |
TTI
| Transkentucky Transportation | 1 |
TTR
| Talleyrand Terminal Railroad Company | 1 |
TTRR
| TTRR | 1 |
TTX
| TTX Company | 3 |
TUGX
| Texas Utilities Mining Company | 2 |
TV
| TV | 1 |
TVRM
| Tennessee Valley | 3 |
TWCX
| Tidewater Chapter, NRHS | 2 |
TWLX
| TWLX | 1 |
TXSE
| TXSE | 1 |
UC
| UC | 1 |
UCRY
| Utah Central | 2 |
UCT
| UCT | 1 |
UD
| UD | 2 |
UDEY
| UDEY | 2 |
UHRR
| UHRR | 3 |
UNK
| UNK | 1 |
UNKN
| UNKN | 18 |
UNLX
| UNLX | 1 |
UNSX
| Rail Logistics, LC | 1 |
UOFL
| UOFL | 14 |
UP
| Union Pacific Railroad Company | 507 |
UPP
| Union Pacific Passenger | 4 |
UR
| UR | 1 |
URC
| URC | 1 |
URHS
| URHS | 1 |
URR
| Union Railroad | 29 |
USA
| USA | 2 |
USAX
| United States Army | 7 |
USCG
| USCG | 1 |
USN
| United States Navy | 1 |
UTAH
| Utah Railway | 5 |
VB
| Van Buren Bridge Company (Bangor & Aroostook) | 4 |
VBR
| Virginia Blue Ridge Railway | 1 |
VC
| Virginia Central Railway | 1 |
VCRR
| Ventura County Railroad Company | 3 |
VECX
| VeraSun Energy | 1 |
VGN
| Virginian Railway | 18 |
VGNX
| VGNX | 3 |
VLIX
| Vintage Locomotives Inc | 1 |
VLJ-
| VLJ- | 2 |
VMLX
| VMLX | 1 |
VS
| V and S Railway Incorporated | 1 |
VT
| Virginia & Truckee | 1 |
VTR
| Vermont Railway | 8 |
VTRX
| VTRX | 1 |
W
| W | 1 |
WA
| Washington & Atlanta Railroad | 7 |
WAB
| Wabash | 42 |
WABA
| WABA | 1 |
WAG
| Wellsville Addison & Galeton | 5 |
WAMX
| Webb Asset Management | 1 |
WAR
| Warrenton Railroad Company | 1 |
WATC
| Washington Terminal Company | 1 |
WATX
| Watco | 1 |
WAWR
| WAWR | 1 |
WBCR
| Wabash Central | 1 |
WC
| Wisconsin Central | 15 |
WCL
| WCL | 2 |
WCLR
| Waccamaw Coastline | 3 |
WCR
| Waterloo Central | 1 |
WCRC
| Washington Central | 1 |
WCRL
| West Chester Railroad Company | 3 |
WCRR
| WCRR | 1 |
WE
| Wheeling & Lake Erie | 9 |
WECX
| Westinghouse Electric Corporation | 1 |
WFS
| West Isle Line Incorporated | 1 |
WGNS
| Wisconsin Great Northern Railroad Inc | 2 |
WHOE
| Walking Horse & Eastern | 1 |
WHRC
| Windsor and Hantsport Railway Company | 1 |
WICT
| Wisconsin & Calumet | 2 |
WIM
| WIM | 3 |
WJRR
| West Jersey Railroad | 1 |
WLE
| WLE | 9 |
WM
| Western Maryland | 60 |
WMSR
| Western Maryland Scenic | 1 |
WNFR
| Kanawha Rail Corporation | 2 |
WNYP
| Western New York and Pennsylvania | 2 |
WOD
| WOD | 1 |
WP
| Western Pacific | 69 |
WPRR
| Willamette and Pacific | 6 |
WPYR
| White Pass & Yukon Route | 5 |
WPZ
| Union Pacific Railroad Company | 1 |
WRA
| Western Railway of Alabama | 5 |
WRL
| WRL | 3 |
WRLC
| WRLC | 1 |
WSCV
| WSCV | 1 |
WSL
| WSL | 1 |
WSLC
| WSLC | 1 |
WSOR
| Wisconsin & Southern | 1 |
WSS
| Winston-Salem Southbound Railway Company | 4 |
WSSB
| WSSB | 5 |
WSSR
| WSSR | 1 |
WSX
| Wierton Steel Division National Steel Co | 4 |
WT
| Wrightsville & Tennille | 2 |
WTCX
| Weyerhauser | 6 |
WTLC
| West Texas & Lubbock Railroad Co Inc. | 1 |
WTXC
| WTXC | 1 |
WURR
| WURR | 3 |
WVC
| Durbin and Greenbrier Valley Railroad d/ | 4 |
WVN
| Kingswood Northern Incorporated d/b/a West Virginia Northern | 2 |
WVR
| Willamette Valley | 1 |
WVRC
| WABASH VALLEY RAILROAD CO. | 2 |
WVRR
| Whitewater Valley Railroad | 7 |
WW
| Winchester & Western | 2 |
WWRC
| Wilmington and Western Railroad | 3 |
WWV
| Walla Walla Valley | 4 |
WWVR
| WWVR | 1 |
WX
| WX | 1 |
XRSX
| XRSX | 1 |
YDHR
| YDHR | 1 |
YILX
| YILX | 1 |
YN
| Youngstown and Northern | 2 |
YRMX
| YRMX | 1 |
YS
| Youngstown Southern Ry | 2 |
ZBF
| ZBF | 1 |
ZWSX
| Zanesville & Western | 1 |