AA
| Ann Arbor | 2 |
AAPV
| AAPV | 1 |
AAR
| Association of American Railroads | 2 |
AARX
| Association of American Railroads | 3 |
ABPF
| ABPF | 1 |
ABPS
| ABPS | 1 |
AC
| Algoma Central | 52 |
ACE
| ACE | 1 |
ACEX
| Altamont Commuter Express | 21 |
ACFX
| General Electric Rail Services | 1 |
ACJR
| Ashtabula Carson Jefferson Railroad Company | 4 |
ACL
| Atlantic Coast Line | 36 |
ACPA
| ACPA | 5 |
ACR
| ACR | 1 |
ACRR
| ACRR | 1 |
ACWR
| Aberdeen, Carolina & Western | 8 |
ACYX
| ACYX | 1 |
ADBF
| Adrian and Blissfield Rail Road Company | 6 |
ADCR
| ADCR | 1 |
ADCX
| Adolph Coors | 4 |
ADEX
| ADEX | 1 |
ADIX
| Adirondack Railway Preservation Society | 27 |
ADN
| Ashley Drew & Northern | 1 |
ADRC
| ADRC | 2 |
AEC
| Atlantic and East Carolina Railway Compa | 1 |
AEE
| American European Express | 5 |
AERC
| Albany and Eastern Railroad Company | 1 |
AERX
| American Energy Resources Generating Com | 1 |
AEX
| Andersons | 1 |
AFRX
| AF Railway Industries Incorporated | 2 |
AFT
| AMERICAN FREEDOM TRAIN FOUNDATION | 7 |
AFTX
| AFTX | 1 |
ALC
| ALC | 4 |
ALCX
| Alcan Smelters and Chemicals Limited | 1 |
ALL
| America Latina Logistica | 33 |
ALLN
| Allentown and Auburn Railroad | 2 |
ALR
| Alan Richie Incorporated | 2 |
AM
| Arkansas & Missouri | 9 |
AMCX
| BP Amoco Chemical Company Chemical Division | 1 |
AMKT
| AMKT | 5 |
AMTK
| Amtrak | 2782 |
AMTL
| Agence métropolitaine de transport | 154 |
ANBX
| Anbel Corporation | 3 |
AOE
| American Orient Express | 38 |
AOEX
| American Orient Express Railway Company | 4 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
AOSX
| Age Of Steam, Ltd | 3 |
APFF
| APFF | 1 |
APXX
| Alberta Prairie Rail Excursions | 10 |
ARA
| Arcade and Attica Railroad Corporation | 6 |
ARR
| Alaska Railroad | 86 |
ARTX
| Artrain | 12 |
ARZC
| Arizona and California Railroad | 1 |
ASML
| Atlanta, Stone Mountain & Lithonia | 1 |
ASV
| Abilene & Smokey Valley | 3 |
AT
| Auto Train | 27 |
ATAX
| Arizona Transit Assembly | 12 |
ATCX
| Southern Illinois Railcar Incorporated | 3 |
ATIX
| Alstom Transportation | 6 |
ATL
| ATL | 3 |
ATSF
| Atchison Topeka & Santa Fe | 241 |
AUT
| AUT | 3 |
AWP
| Atlanta & West Point | 5 |
AZER
| Arizona Eastern Railway Company | 2 |
BAP
| Butte Anaconda & Pacific | 3 |
BAR
| Bangor & Aroostook | 9 |
BARZ
| Bangor and Aroostook Railroad Company | 1 |
BB
| Buckingham Branch | 4 |
BBRX
| Bombardier Incorporated Transportation Equipment Group | 7 |
BCLR
| Bay Colony | 1 |
BCOL
| Canadian National Railways | 17 |
BCPM
| British Columbia Provincial Museum | 17 |
BCR
| Bay Coast Railroad | 2 |
BCRR
| Boyne City Railroad | 4 |
BCVX
| West Coast Express | 8 |
BDLX
| Big Dog Lines | 29 |
BDRV
| Belvidere & Delaware Railroad | 6 |
BEAV
| BEAV | 2 |
BGRM
| Bluegrass Railroad Museum | 5 |
BGRR
| Bluegrass Scenic Railroad | 3 |
BGRX
| BGRX | 1 |
BH
| Bath & Hammondsport | 2 |
BHC
| Black Hills Central | 13 |
BHCR
| BHCR | 5 |
BJRR
| BJRR | 2 |
BKRR
| Batten Kill Railroad | 5 |
BKSX
| BKSX | 3 |
BL
| BL | 3 |
BLE
| Bessemer & Lake Erie | 2 |
BLF
| BLF | 4 |
BLH
| BLH | 1 |
BLOL
| Bloomer Shippers Connecting Railroad Co. | 1 |
BLRX
| BLRX | 13 |
BM
| Boston & Maine | 23 |
BMC
| BMC | 1 |
BMCX
| Bluewater Michigan Chapter Incorporated | 12 |
BML
| Belfast & Mooshead Lake | 5 |
BMRG
| Blue Mountain & Reading | 2 |
BMRX
| BMRX | 1 |
BMT
| BMT | 1 |
BN
| Burlington Northern | 99 |
BNA
| Burlington Northern Business Cars | 10 |
BNSF
| BNSF Railway | 64 |
BO
| Baltimore & Ohio | 85 |
BOMX
| B&O Railroad Museum Inc. | 8 |
BOOT
| BOOT | 1 |
BP
| BP | 1 |
BPCX
| Basin Electric Power Cooperative | 1 |
BPE
| BPE | 1 |
BPM
| BPM | 1 |
BPRR
| Buffalo and Pittsburgh | 1 |
BR
| Buffalo and Pittsburgh | 7 |
BR1
| British Railways | 15 |
BRBX
| Bombardier Transportation | 1 |
BRLX
| BRS Leasing Co., Inc. | 11 |
BRMX
| Berkshire Railway Museum Inc | 8 |
BRN
| BRN | 2 |
BRR
| BRR | 2 |
BRSR
| BRSR | 6 |
BRSX
| High Sierra Transportation, LLC | 1 |
BRT
| BRT | 2 |
BRW
| Black River And Western | 19 |
BSOR
| Buffalo Southern | 4 |
BSRW
| BSRW | 2 |
BSRX
| Branson Scenic | 9 |
BSVR
| BSVR | 1 |
BSVY
| Boone & Scenic Valley Railroad | 10 |
BUGX
| Bruggere and Monson | 1 |
BUSI
| BUSI | 1 |
BUTT
| BUTT | 1 |
BYCX
| Chelatchie Prairie Railroad | 2 |
CACV
| Cooperstown and Charlotte Valley | 9 |
CACX
| Cooperstown & Charlotte Valley Railroad | 3 |
CAE
| Chicago Aurora & Elgin | 1 |
CAGY
| Columbus & Greenville Railway | 4 |
CALA
| Carolina Southern | 5 |
CALT
| CALT | 3 |
CANN
| CANN | 1 |
CARI
| CARI | 1 |
CASS
| Cass Scenic | 12 |
CB
| CB | 2 |
CBQ
| Chicago Burlington & Quincy | 233 |
CBRW
| Columbia Basin Railroad | 11 |
CBRX
| Charles Barthold | 13 |
CC
| Chicago Central & Pacific | 2 |
CCCR
| Cape Cod Central Railroad | 6 |
CCGX
| Cando Contracting Limited | 3 |
CCH
| Cape Cod & Hyannis | 4 |
CCRR
| Claremont Concord | 4 |
CCTF
| CCTF | 4 |
CCTX
| Coleto Creek Power WLE, LP | 1 |
CD
| Ceske Drahy | 1 |
CDCG
| CDCG | 3 |
CDHX
| Caledonian Rail Lines, LLC | 1 |
CDOT
| Conneticut Department of Transportation | 43 |
CDTX
| California DOT | 74 |
CEAD
| CEAD | 1 |
CEI
| Chicago & Eastern Illinois | 14 |
CESX
| CENTRAL STATES RAIL ASSOCIATES, INC. | 7 |
CEX
| CEX | 1 |
CFB
| CFB | 1 |
CFI
| CFI | 1 |
CFNR
| California Northern | 2 |
CFR
| CFR | 1 |
CFRC
| CFRC | 11 |
CG
| Central Of Georgia | 47 |
CGNE
| Champagne Railroad Incorporated | 1 |
CGW
| Chicago Great Western | 6 |
CHAE
| CHAE | 1 |
CHAT
| Chattahoochee & Gulf | 2 |
CHES
| CHES | 1 |
CHF
| CHF | 1 |
CHP
| Ferrocarriles Nacionales de Mexico | 16 |
CHRR
| Chesapeake Railroad Company | 3 |
CHRX
| The Chesapeake Division | 2 |
CHS
| Charlotte Southern | 6 |
CIC
| Cedar Rapids & Iowa City | 2 |
CIE
| CIE | 5 |
CIMA
| CIMA | 1 |
CITX
| CIT Group/Capital Finance, Inc | 3 |
CITY
| CITY | 1 |
CKSR
| CKSR | 1 |
CLK
| Cadillac & Lake City | 2 |
CLPX
| Boulder Scientific Company | 6 |
CM
| Central Montana Rail Incorporated | 2 |
CME
| CME | 1 |
CMEF
| CMEF | 5 |
CMNR
| CMNR | 1 |
CMO
| Chicago St Paul Minneapolis & Omaha | 1 |
CMPA
| Madison Railroad Division of City of Mad | 1 |
CMRR
| Catskill Mountain Scenic | 10 |
CMSL
| Cape May Seashore Line | 6 |
CMSP
| CMSP | 1 |
CMST
| CMST | 1 |
CMW
| CMW | 5 |
CN
| Canadian National Railways | 136 |
CNJ
| Central Rail Road of New Jersey | 55 |
CNLX
| CN Treasury Operations, Limited | 1 |
CNR
| CNR | 1 |
CNRX
| Canadian Northern Railway LLC | 1 |
CNRY
| Cincinnati Railway | 12 |
CNSM
| CHICAGO NORTH SHORE & MILWAUKEE RWY | 3 |
CNW
| Chicago & Northwestern | 80 |
CNZR
| Central New England | 1 |
CO
| Chesapeake & Ohio | 79 |
COAC
| COAC | 1 |
COG
| COG | 1 |
COHX
| CHESAPEAKE & OHIO HISTORICAL SOCIETY, INC. | 1 |
COLO
| COLO | 7 |
COP
| City of Prineville Railway | 2 |
CP
| Canadian Pacific Railway | 132 |
CPC
| CPC | 1 |
CPEF
| Companhia Paulista de Estradas de Ferro | 3 |
CPMY
| Coopersville & Marne Railway | 11 |
CPP
| CPP | 1 |
CPR
| Canadian Pacific Railway | 1 |
CPTM
| Companhia Paulista de Trens Metropolitanos | 1 |
CR
| Conrail | 6 |
CRC
| CRC | 5 |
CRDT
| CRDT | 2 |
CRDX
| Chicago Freight Car Leasing Company | 1 |
CREX
| Citicorp Railmark, Inc | 1 |
CRHA
| Candian Railroad Historical Assocation | 9 |
CRIP
| Chicago Rock Island & Pacific | 105 |
CRMX
| MHC Incorporated (Subsidiary of Conagra Incorporated) | 1 |
CRR
| Clinchfield | 12 |
CRRM
| Colorado Railroad Museum | 1 |
CRRX
| Canon City and Royal Gorge Railroad LLC | 23 |
CRSX
| Cost Rail Service | 2 |
CRT
| CHICAGO RAPID TRANSIT CO. | 1 |
CRTA
| Cleveland Rapid Transit | 5 |
CS
| Colorado & Southern | 21 |
CSD
| CSD | 3 |
CSL
| Chicago Short Line Railway Company | 1 |
CSR
| Camden & Southern Railroad Inc | 1 |
CSRR
| Conway Scenic | 17 |
CSRX
| Conway Scenic Railroad | 16 |
CSS
| Chicago South Shore And South Bend | 4 |
CSX
| CSX Railroad | 44 |
CTC
| CTC | 3 |
CTR
| Clinton Terminal Railroad Company | 3 |
CTRS
| CTRS | 1 |
CTS
| Cumbres & Toltec Scenic | 22 |
CTSR
| CTSR | 2 |
CTVX
| Cleveland Terminal and Valley Railway Incorporated | 10 |
CV
| Central Vermont | 5 |
CVAR
| Cedar Valley Railroad | 9 |
CVL
| CUYHOGA VALLEY LINE RAILROAD | 1 |
CVRC
| CVRC | 1 |
CVSR
| Cuyahoga Valley Scenic RR | 25 |
CVTX
| CVTX | 1 |
CWC
| Charleston & Western Carolina | 1 |
CWI
| Chicago and Western Indiana | 1 |
CWM
| CWM | 3 |
CWMW
| CWMW | 2 |
CWR
| CWR Incorporated | 7 |
CYZ
| CYZ | 1 |
CZRC
| CZRC | 2 |
D
| D | 1 |
DALT
| Dallas Terminal Railway | 4 |
DART
| Dallas Area Rapid Transit | 1 |
DAWX
| D.A. Walmsley and Company | 4 |
DB
| Deutsche Bahn | 41 |
DCFB
| Dodge City Ford and Bucklin Railroad Com | 3 |
DCLR
| Delaware Coast Line RR Co | 2 |
DCW
| DCW | 1 |
DE
| DE | 1 |
DGVR
| DURBIN & GREENBRIER VALLEY RAILROAD INC | 8 |
DH
| Delaware & Hudson | 32 |
DIM
| DIM | 1 |
DINE
| DINE | 1 |
DINI
| DINI | 1 |
DIR
| DIR | 1 |
DJRY
| DJRY | 1 |
DL
| Delaware-Lackawanna Railroad Company | 1 |
DLJX
| DLJX | 1 |
DLMV
| DLMV | 1 |
DLMX
| Daylight Locomotives and Machine Works Incorporated | 6 |
DLRR
| DLRR | 4 |
DLW
| Delaware Lackawanna & Western | 53 |
DLWR
| Depew Lancaster and Western Railroad Com | 1 |
DLWX
| D.L. and W. Incorporated | 1 |
DM
| Detroit & Mackinac | 8 |
DME
| Dakota, Minnesota and Eastern | 5 |
DMIR
| Duluth Missabe & Iron Range | 9 |
DMN
| Duluth Missabe and Northern Railway | 1 |
DNM
| DNM | 1 |
DODX
| Department Of Defense | 2 |
DOME
| DOME | 1 |
DOT
| DOT | 1 |
DOTX
| USDOT/Federal Railroad Administration | 7 |
DOVE
| DOVE | 3 |
DPCX
| Dragon Phosphate Company | 1 |
DPP
| DPP | 4 |
DR
| Dardanelle and Russellville Railroad Inc | 1 |
DRCX
| Denver Railway Car Co | 10 |
DRG
| DRG | 2 |
DRGW
| Denver & Rio Grande Western | 53 |
DRMX
| Danbury Railway Museum Incorporated | 4 |
DSB
| DSB | 1 |
DSL
| Denver & Salt Lake | 3 |
DSNG
| Durango & Silverton Narrow Gauge Railroa | 39 |
DSPP
| Denver, South Park & Pacific RR | 1 |
DSRX
| Downeast Scenic | 4 |
DSSA
| Duluth, South Shore & Atlantic | 7 |
DTC
| DTC | 1 |
DTI
| Detroit Toledo & Ironton | 3 |
DURR
| DURR | 6 |
EBGR
| Eastern Berks Gateway Railroad | 2 |
EBT
| East Broad Top | 15 |
ECC
| ECC | 2 |
ECRM
| ECRM | 3 |
EFOM
| EFOM | 11 |
EFS
| EFS | 5 |
EFVM
| Estrada de Ferro Vitoria-Minas | 112 |
EI
| EI | 9 |
EIRR
| Eastern Idaho Railroad Incorporated | 1 |
EJE
| Elgin Joliet and Eastern | 2 |
EJS
| East Jordan & Southern | 1 |
EL
| Erie Lackawanna | 64 |
ELDC
| ELDC | 1 |
ELGX
| Trains Touristiques De Chaudiere-Appalaches | 1 |
ELS
| Escanaba and Lake Superior Railroad Comp | 4 |
EMDX
| EMD | 4 |
ENEX
| ENEX | 1 |
ENR
| E and N Railway Company Limited | 1 |
EOLX
| EOLX | 4 |
EPS
| EPS | 1 |
ERIE
| Erie Railroad | 19 |
ERR
| Edaville Railroad Corp | 2 |
ESHR
| Eastern Shore Railroad | 1 |
ESNA
| Eureka Springs and North Arkansas | 6 |
ETRC
| ETRC | 1 |
ETWN
| ETWN | 2 |
EV
| Everett Railroad | 9 |
EVR
| Estonian Rwys | 1 |
EVRC
| EVRC | 1 |
EX-B
| EX-B | 1 |
FBOX
| TTX Company | 1 |
FC
| Fulton County Railroad Incorporated | 3 |
FCA
| Ferrovia Centro Atlantica | 1 |
FCC
| Flagg Coal Co. | 1 |
FCEN
| Florida Central | 2 |
FCM
| Ferrocarriles Nacionales de Mexico | 4 |
FCP
| Ferrocarril Del Pacifico | 33 |
FDEC
| Ferrocariles de Cuba | 3 |
FEAT
| FEAT | 1 |
FEC
| Florida East Coast | 40 |
FEPA
| FEPA | 41 |
FEVR
| Fremont & Elkhorn Valley Railroad | 3 |
FFTX
| Florida Fun Train | 1 |
FGC
| Florida Gulf Coast Railroad Museum | 1 |
FGCX
| Florida Gulf Coast Railroad Museum Incorporated | 2 |
FGLK
| Finger Lakes Railway | 5 |
FICX
| Frontier Industrial Corp | 3 |
FLN
| FLN | 1 |
FLNX
| R.P. Flynn Incorporated d/b/a Ohio Railway Supply | 5 |
FLSX
| Great Miami Incorporated | 2 |
FLWB
| FLWB | 4 |
FMXW
| FMXW | 1 |
FN
| FN | 9 |
FNC
| FNC | 1 |
FNM
| Ferrocarriles Nacionales de Mexico | 64 |
FNRX
| FNRX | 6 |
FNTX
| Ferronet Sa De Cv | 1 |
FRA
| Federal Railroad Administration | 1 |
FRAX
| FRAX | 1 |
FRRX
| Feather River Rail Society | 1 |
FRYX
| Federated Railways Inc | 20 |
FSRR
| FerroSur | 1 |
FSTM
| FSTM | 1 |
FTX
| FTX | 1 |
FUS
| Ferrocarriles Nacionales de Mexico | 6 |
FV
| FV | 1 |
FVM
| FVM | 6 |
FW
| Fillmore & Western | 1 |
FWCR
| Florida West Coast Railroad Incorporated | 2 |
FWD
| Fort Worth & Denver | 9 |
FWHR
| FWHR | 4 |
FWHS
| FWHS | 2 |
FWWR
| Fort Worth and Western | 5 |
FWWV
| FWWV | 1 |
FXE
| Ferromex | 43 |
GA
| Georgia Railroad | 9 |
GALT
| GALT | 14 |
GALX
| Georgia Power Company | 1 |
GANO
| Georgia Northern Railway Company | 12 |
GATX
| General American Marks Company | 1 |
GBRX
| Greenbrier Leasing Corporation | 1 |
GBW
| Green Bay & Western | 2 |
GCLX
| Gold Coast Limited | 1 |
GCOX
| Gold Coast Railroad Museum | 1 |
GCR
| GCR | 2 |
GCRX
| Grand Canyon Railway Incorporated | 36 |
GCRY
| Grand Canyon Railway | 49 |
GECX
| General Electric Company | 1 |
GETY
| Gettysburg Railroad | 15 |
GF
| Georgia & Florida | 3 |
GFRR
| Georgia and Florida Railnet | 3 |
GGMX
| Golden Gate Railroad Museum Incorporated | 1 |
GHSA
| GHSA | 1 |
GLAS
| GLAS | 1 |
GLC
| Great Lakes Central Railroad | 2 |
GLRR
| GLRR | 3 |
GLRX
| Georgetown Loop Railroad Incorporated | 17 |
GLTX
| GLTX | 3 |
GLW
| Great Lakes Western | 4 |
GLWX
| GLWX | 20 |
GM
| Gainesville Midland | 2 |
GMO
| Gulf Mobile & Ohio | 43 |
GMRC
| Green Mountain RR | 14 |
GMRx
| GMRX | 1 |
GN
| Great Northern | 135 |
GNBC
| Grainbelt Corporation | 2 |
GNWB
| GNWB | 3 |
GNWR
| Genesee and Wyoming Railroad Company | 2 |
GO
| Gulf and Ohio | 7 |
GOAN
| GOAN | 1 |
GOT
| GO Transit | 429 |
GP
| Georgia Pacific | 1 |
GREE
| GREE | 1 |
GRLX
| GRLX LLC | 1 |
GRMX
| Gopher State Railway Museum | 2 |
GRPX
| CIT Group/Capital Finance, Inc | 1 |
GS
| Gloster Southern | 2 |
GSF
| Georgia Southern and Florida Railway Company | 1 |
GSM
| Great Smokey Mountains Railway | 14 |
GSMR
| Great Smoky Mountains | 27 |
GSR
| GSR | 1 |
GSS
| GSS | 1 |
GSWR
| Georgia Southwestern | 2 |
GT
| GT | 2 |
GTDR
| GTDR | 2 |
GTLX
| Great Lakes Railcar, Inc. | 7 |
GTW
| Grand Trunk Western | 26 |
GU
| Grafton and Upton Railroad Company | 1 |
GVRX
| Grapevine Vintage Railroad | 9 |
GW
| GW | 2 |
GWR
| Great Western Railway Company | 1 |
GWT
| GWT | 3 |
GWWD
| Greater Winnipeg Water District | 2 |
HALX
| Holland American Line - Westours Incorporated | 14 |
HBRR
| Huckleberry Railroad | 15 |
HBTM
| HBTM | 1 |
HGC
| HGC | 2 |
HHR
| HHR | 2 |
HI
| HI | 1 |
HIC
| HIC | 1 |
HICK
| HICK | 3 |
HLB
| HLB | 2 |
HLC
| HLC | 1 |
HODX
| Heart of Dixie Railway Museum | 3 |
HOLL
| HOLL | 1 |
HRRC
| Housatonic Railroad Company | 1 |
HRS
| Holidaysburg and Roaring Spring Railroad Company | 6 |
HRT
| Hartwell RR | 2 |
HSMR
| HSMR | 1 |
HSRR
| Hardin Southern Railroad Incorporated | 2 |
HUNX
| Collis P. Huntington Railroad Historical | 1 |
HV
| HV | 4 |
HVR
| HVR | 1 |
HVRM
| HVRM | 1 |
HVRR
| Hocking Valley | 3 |
HVRX
| Heber Valley Historic Railroad | 19 |
HVSR
| Hocking Valley Scenic | 12 |
HVSX
| HVSX | 3 |
HWCR
| HWCR | 1 |
IAIS
| Iowa Interstate | 7 |
IANR
| Iowa Northern Ry | 8 |
IANW
| Iowa Northwestern | 7 |
IC
| Illinois Central | 65 |
ICG
| Illinois Central Gulf | 7 |
IDTX
| IDTX | 14 |
IHB
| Indiana Harbor Belt | 1 |
ILRV
| ILRV | 3 |
IMRX
| IMRX | 2 |
IN
| Indiana Northeastern | 1 |
INCO
| INCO | 3 |
INDR
| INDR | 1 |
INPR
| Idaho Northern and Pacific Railroad | 7 |
INPX
| Inland Pacific Railroad | 1 |
INRD
| Indiana Railroad | 2 |
INT
| Norfolk Southern Railway Company | 1 |
IORP
| Turtle Creek & Lebanon | 4 |
IORY
| Indiana & Ohio | 5 |
IR
| Illinois Railnet | 7 |
IRM
| Indiana Railroad Museum | 9 |
IRMX
| III TRANSPORTATION | 2 |
IRR
| IRR | 1 |
IRSI
| IRSI | 3 |
IRYM
| Illinois Railway Museum | 6 |
ISRX
| Iaeger and Southern | 4 |
ISSN
| ISSN | 1 |
IT
| IT | 3 |
ITAX
| Illinois Transit Assembly Incorporated | 4 |
ITC
| Illinois Terminal Railroad | 6 |
ITMZ
| Indiana Transportation Museum | 4 |
J
| J | 1 |
JACK
| JACK | 1 |
JES
| JES | 3 |
JESX
| James E Strates Shows | 17 |
JFC
| JFC | 1 |
JFJ
| JFJ | 1 |
JGSA
| JGSA | 1 |
JJCX
| JJCX | 1 |
JPBX
| Joint Powers Board (CalTrain) | 99 |
JRC
| JRC | 5 |
JTC
| JTC | 2 |
JTCX
| Juniata Terminal | 4 |
JTFS
| JTFS | 3 |
KCCX
| Kennecott Utah Copper Corporation | 2 |
KCS
| Kansas City Southern | 24 |
KCSM
| Kansas City Southern De Mexico | 6 |
KJR
| Kiski Junction Railroad | 3 |
KKRR
| Knox and Kane Railroad Company | 18 |
KLSC
| Kalamazoo Lake Shore and Chicago Railway | 5 |
KMRY
| KMRY | 1 |
KOOT
| KOOT | 1 |
KOR
| KOR | 20 |
KPRY
| KPRY | 4 |
KRM
| Kentucky Railway Museum | 8 |
KRMX
| KAWASAKI RAIL CAR, INC | 4 |
KRR
| Kiamichi | 2 |
KRS
| KRS | 1 |
KRSX
| Kurguz Enterprises, Inc. | 1 |
KRXX
| KRXX | 2 |
KT
| Kentucky and Tennessee Railway Company | 7 |
KXHR
| Knoxville & Holston River RR | 9 |
LA
| Lousiana and Arkansas | 2 |
LACK
| LACK | 2 |
LAL
| Livonia Avon & Lakeville | 2 |
LAMB
| LAMB | 1 |
LANC
| LANC | 1 |
LASB
| Lackawaxen and Stourbridge | 2 |
LAUR
| LAUR | 4 |
LC
| Lancaster & Chester | 9 |
LCRA
| LCRA | 1 |
LEHI
| LEHI | 2 |
LGR
| LGR | 1 |
LGSR
| LGSR | 10 |
LGV
| LGV | 2 |
LHR
| Lehigh & Hudson River | 2 |
LHRR
| Longhorn Railroad | 1 |
LI
| Long Island Rail Road Company | 263 |
LINC
| Lewis and Clark Railway Company | 1 |
LIRR
| Long Island Railroad | 35 |
LKP
| LKP | 1 |
LKPR
| LKPR | 9 |
LM
| Litchfield & Madison | 2 |
LMCX
| LMCX | 1 |
LMIX
| Loram Maintenance of Way Inc. | 2 |
LMM
| LMM | 4 |
LN
| Louisville & Nashville | 84 |
LNAC
| Chattahoochee Bay Railroad, LLC | 2 |
LNER
| London North Eastern Railway | 2 |
LNO
| Laona and Northern Rwy | 2 |
LO
| LO | 1 |
LOOK
| LOOK | 1 |
LORE
| LORE | 1 |
LPS
| LPS | 1 |
LRC
| LRC | 1 |
LRMX
| Logistics Resource Management | 1 |
LRR
| Little River Railroad | 5 |
LRRY
| LRRY | 1 |
LRS
| Laurinburg and Southern | 1 |
LSER
| LSER | 1 |
LSI
| Lake Superior and Ishpeming Railroad | 3 |
LSM
| LSM | 6 |
LSMR
| LSMR | 4 |
LSMS
| Lake Shore Michigan Southern Railroad | 1 |
LSR
| LSR | 1 |
LSRC
| Lake State Railway Company | 1 |
LSRH
| LSRH | 1 |
LSRX
| Lake Superior Railroad Museum | 7 |
LSTX
| LSTX | 4 |
LTEX
| Larry''s Truck Electric | 1 |
LTRY
| LTRY | 1 |
LTSR
| LTSR | 1 |
LV
| Lehigh Valley | 8 |
LVB
| LVB | 1 |
LWVX
| Lake Shore Railway Association Inc. | 3 |
LYNN
| LYNN | 1 |
MALX
| Mid-America Locomotive and Car Repair Incorporated | 3 |
MARC
| Maryland Transit Administration | 136 |
MBTA
| Massachusetts Bay Transit Authority | 374 |
MC
| Mass Coastal | 1 |
MCC
| MCC | 1 |
MCCX
| Mt. Vernon Coal Transfer Company (Ind.) | 2 |
MCER
| Massachusetts Central Railroad | 2 |
MCRR
| Monongahela Connecting RR Company | 6 |
MCRX
| Marcus Rail Transport LLC | 2 |
MCSA
| Moscow Camden and San Augustine Railroad | 1 |
MCTA
| Minnesota Central Railroad Company | 1 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 21 |
MDDE
| Maryland and Delaware Railroad | 1 |
MDLE
| Mount Dora & Lake Eustis Railway | 1 |
MDOT
| Maryland DOT | 2 |
MDRY
| Midland Railway Historical Association | 10 |
ME
| Morristown & Erie Railroad | 37 |
MEC
| Maine Central | 11 |
MECR
| MECR | 2 |
MELX
| Sunbelt Cement Incorporated | 2 |
MERR
| MERR | 2 |
METX
| METRA | 456 |
MGA
| Monongahela RR | 1 |
MH
| Mount Hood Railroad | 15 |
MHM
| MHM | 10 |
MHRR
| MHRR | 1 |
MHWA
| Mohawk Adirondack and Northern Railroad | 3 |
MIDH
| Middletown and Hummelstown RR Company | 8 |
MIDL
| MIDL | 1 |
MILL
| MILL | 1 |
MILW
| Milwaukee Road | 121 |
MILX
| General Electric Rail Services | 1 |
MINN
| MINN | 1 |
MJRX
| Railway Service Contractors Inc | 13 |
MKIX
| Morrison-Knudsen | 1 |
MKT
| Missouri-Kansas-Texas | 22 |
MLR
| MLR | 1 |
MLRX
| MLRX | 2 |
MLWX
| MLWX | 2 |
MLX
| MLX | 1 |
MML
| MML | 4 |
MNCR
| Metro North Commuter Railway | 169 |
MNCW
| Metro-North Commuter Railroad | 52 |
MNE
| Manistee & North East | 1 |
MNGR
| Maine Narrow Gauge RR Museum | 3 |
MNNR
| Minnesota Commercial | 2 |
MNR
| MNR | 1 |
MNRR
| Modoc Northern Railroad Company | 2 |
MNRX
| Minnesota Northstar | 12 |
MNS
| Minneapolis Northfield & Southern | 1 |
MNTX
| Minnesota Transportation Museum, Inc. | 16 |
MNZX
| MNZX | 6 |
MO
| MO | 1 |
MOLX
| Internation Molasses Corporation Limited | 1 |
MON
| Monon Route | 8 |
MORR
| MORR | 1 |
MOUN
| MOUN | 1 |
MP
| Missouri Pacific | 22 |
MPA
| Maryland and Pennsylvania Railroad | 1 |
MPLX
| General Electric Railcar Services Corp. | 1 |
MPP
| MPP | 2 |
MPXL
| MPXL | 1 |
MR
| McCloud Railway Company | 1 |
MREX
| Monad Railway Equipment Company | 2 |
MRHF
| MRHF | 5 |
MRIX
| Missouri North Centra RR | 1 |
MRJX
| MRJX | 2 |
MRL
| Montana Rail Link | 4 |
MRLX
| Mid America Rail Car Leasing | 99 |
MRSR
| Mount Rainier Scenic | 12 |
MRYM
| Monticello Railway Museum | 3 |
MSC
| Metropolitan Stevedore | 1 |
MSCI
| Mississippi Central Railroad Company | 1 |
MSEX
| Tour Alaska Inc.Dba Princess Tour | 12 |
MSO
| Michigan Southern | 1 |
MSPS
| MSPS | 1 |
MSRR
| MSRR | 1 |
MSTL
| Minneapolis & St Louis | 1 |
MSTX
| MSTX | 17 |
MSV
| Mississippi and Skuna Valley Railroad Co | 1 |
MT
| Mississippi and Tennessee RailNet Incorporated | 2 |
MTA
| NYC Transit | 25 |
MTBA
| MTBA | 1 |
MTDX
| Midwest Transportation & Development Cor | 12 |
MTM
| MTM | 6 |
MUNI
| San Francisco Municipal Railway | 1 |
MV
| MV | 1 |
MWCR
| MWCR | 7 |
MWRC
| Mount Washington Railway Company | 2 |
NA
| NA | 1 |
NAP
| Narragansett Pier Railroad Company | 1 |
NAR
| Northern Alberta Railways | 1 |
NARM
| Northern Alabama Railway Museum | 3 |
NAUG
| Naugatuck Railroad Company | 3 |
NBSR
| New Brunswick Southern Railway Company L | 3 |
NC
| CSX Transportation Incorporated | 1 |
NCBX
| New Century Rail Transport LLC | 11 |
NCDA
| NCDA | 1 |
NCID
| NCID | 1 |
NCL
| North Coast Lines | 3 |
NCLX
| Nova Chemicals Incorporated | 1 |
NCMX
| North Carolina Transportation Museum | 11 |
NCNG
| NCNG | 1 |
NCRA
| Northern Central Railcar Association | 4 |
NCRR
| NCRR | 1 |
NCRY
| Northern Central Railway | 3 |
NCSL
| Nashville Chattanooga & St Louis | 13 |
NCST
| NCST | 1 |
NCTD
| NCTD | 1 |
NCTM
| NCTM | 4 |
NCX
| NCX | 2 |
NdeM
| NDEM | 267 |
NDT
| NDT | 2 |
NE
| NE | 1 |
NER
| NER | 1 |
NF
| NF | 2 |
NGAX
| NGAX | 2 |
NGRR
| NGRR | 1 |
NGRX
| NGRX | 8 |
NH
| New Haven | 43 |
NHI
| NHI | 10 |
NHIR
| New Hope & Ivyland | 26 |
NHRR
| New Hope and Ivyland Rail Road | 19 |
NHRX
| New Haven National Rail Terminal | 1 |
NIBX
| NIBX | 1 |
NICD
| Northern-Indiana Commuter Transportation | 7 |
NIR
| NIR | 1 |
NIRC
| NIRC | 1 |
NJC
| NJC | 2 |
NJT
| New Jersey Transit | 872 |
NJTR
| NJ Transit Rail Operations | 179 |
NKP
| Nickel Plate | 15 |
NM
| National Railways of Mexico | 1 |
NMRX
| New Mexico Department Of Transportation | 14 |
NN
| Northern Nevada Railroad Corporation | 6 |
NOB
| NOB | 5 |
NOKL
| Northwestern Oklahoma | 2 |
NONE
| NONE | 1 |
NORT
| NORT | 3 |
NP
| Northern Pacific | 96 |
NPC
| North Pacific Coast | 1 |
NPS
| NPS | 1 |
NRE
| NRE | 10 |
NREX
| National Railway Equipment | 2 |
NRGX
| NRG ENERGY, INC. | 2 |
NRHS
| NRHS | 4 |
NRHX
| National Railway Historical Society | 8 |
NRLX
| CIT Group/Capital Finance, Inc | 1 |
NRM
| NRM | 2 |
NRTX
| Nashville Music City Star | 11 |
NS
| Norfolk Southern | 34 |
NSC
| NSC | 2 |
NSHR
| North Shore | 10 |
NSR
| Newburgh and South Shore Railroad Compan | 11 |
NSRM
| NSRM | 7 |
NSRN
| NSRN | 1 |
NSRX
| Railroading Heritage Of Midwest America | 30 |
NSRY
| NSRY | 1 |
NVRR
| NAPA Valley Railroad Company | 10 |
NW
| Norfolk & Western | 68 |
NWP
| Northwestern Pacific Railroad Company | 4 |
NYC
| New York Central | 138 |
NYCT
| NYCT | 8 |
NYCX
| New York Central Lines LLC | 1 |
NYGL
| New York and Greenwood Lake Railroad | 6 |
NYLE
| New York and Lake Erie Railroad Company | 5 |
NYOG
| New York and Ogdensburg Railway Company Incorporated | 1 |
NYOW
| New York, Ontario & Western | 8 |
NYSW
| New York Susquehanna & Western | 19 |
OAE
| OAE | 1 |
OAK
| OAK | 1 |
OC
| OC | 3 |
OCHR
| OCHR | 1 |
OCNR
| OCNR | 4 |
OCSR
| OCSR | 4 |
OCT
| OCT | 1 |
OCTL
| Oil Creek and Titusville Lines | 9 |
OCW
| Ocean City Western Railroad | 2 |
ODCX
| Old Dominion Chapter | 5 |
ODOT
| ODOT | 1 |
ODRM
| Old Dominion Chapter | 2 |
OE
| Oregon Electric | 7 |
OERM
| OERM | 2 |
OEX
| OEX | 1 |
OHCR
| Ohio Central | 21 |
OIM
| Oliver Mining Co | 1 |
OKRX
| Oklahoma Railway Museum Ltd | 5 |
OLS
| OLS | 1 |
OMD
| OMD | 4 |
OMRX
| Ozark Mountain Railcar LLC | 2 |
ONCR
| ONCR | 2 |
ONE
| London Eastern Railway Ltd. | 1 |
ONR
| ONR | 4 |
ONT
| Ontario Northland Railway | 32 |
OPE
| Oregon Pacific & Eastern | 8 |
OPR
| Oregon Pacific | 2 |
ORHC
| Orrville Railway Historical Society | 1 |
ORL
| ORL | 1 |
ORLC
| ORLC | 2 |
ORXX
| ORXX | 3 |
OSL
| OSL | 4 |
OSRM
| OSRM | 3 |
OVRR
| OVRR | 2 |
OW
| OW | 1 |
OWRN
| OWRN | 1 |
OZRR
| OZRR | 4 |
P
| P | 1 |
P70
| P70 | 1 |
PACI
| PACI | 1 |
PAL
| Paducah & Louisville | 1 |
PAPX
| Pennsylvania Pullmans Incorporated | 2 |
PAR
| PAR | 7 |
PASS
| PASS | 1 |
PAT
| Port Auhority of Allegheny County | 2 |
PATH
| PATH | 1 |
PAUL
| PAUL | 1 |
PAX
| PAX | 2 |
PAXX
| PAXX | 10 |
PC
| Penn Central | 148 |
PCI
| PCI | 2 |
PCRC
| Panama Canal Railway Company | 2 |
PCX
| PCX | 2 |
PDC
| PDC | 4 |
PE
| Peoria & Eastern | 1 |
PEÑO
| PEÑO | 2 |
PESX
| Potomac Eagle Scenic Railroad | 2 |
PGE
| Pacific Great Eastern | 5 |
PICK
| Pickens Railway | 1 |
PINE
| PINE | 1 |
PKP
| Polish Railways | 3 |
PLA
| Pacific Locomotive Association [Niles Canyon Railway] | 4 |
PLE
| Pittsburgh & Lake Erie | 8 |
PLLX
| Plymouth And Lincoln Railroad Corp | 7 |
PLM
| PLM | 1 |
PLRR
| PLRR | 1 |
PM
| Pere Marquette | 4 |
PMCX
| PMCX | 5 |
PN
| PN | 1 |
PNRX
| United States Atomic Energy Commission, Pittsburgh Naval Reactors Offi | 2 |
PNWC
| PNWC | 8 |
PNWR
| Portland and Western Railroad Incorporat | 1 |
PO
| PO | 1 |
POTB
| Port of Tillamook Bay | 2 |
POVA
| Pend Oreille Valley Railroad | 6 |
PPBR
| PPBR | 1 |
PPCX
| AAPRCO Register Private Cars | 252 |
PPLX
| Pennsylvania Power and Light Company | 2 |
PR
| Palmetto Railways | 2 |
PRCX
| Prairie Coal Limited | 4 |
PRIV
| PRIV | 4 |
PRPA
| PRPA | 1 |
PRPX
| Pacific Railroad Preservation Assoc | 4 |
PRR
| Pennsylvania Railroad | 293 |
PRSL
| Pennsylvania Reading Seashore | 5 |
PRWX
| Railway Entertainment Services Inc. | 2 |
PSCI
| PSCI | 1 |
PSTR
| PSTR | 6 |
PT
| Peninsula Terminal Company | 1 |
PTC
| Philadelphia Transportation Company | 3 |
PTCX
| PTCX | 1 |
PTMS
| PTMS | 1 |
PTMX
| Pittsburgh Transportation Museum Society | 1 |
PUGE
| PUGE | 1 |
PUL
| PUL | 2 |
PULL
| Pullman | 494 |
PV
| PV | 4 |
PVCX
| BHP Copper Incorporated | 1 |
PVRR
| Pioneer Valley Railroad Company Incorporated | 2 |
PVTC
| PVTC | 1 |
PVTX
| PVTX | 2 |
PW
| Providence and Worcester | 9 |
QARX
| Queen Annes Railroad | 3 |
QC
| Quebec Central | 3 |
QCM
| Quebec Cartier Railroad | 2 |
QNSL
| Quebec, North Shore and Labrador | 1 |
RAIL
| Railinc Corporation | 1 |
RAMX
| Rail Merchants International | 3 |
RANX
| RANX | 1 |
RAS
| RAS | 12 |
RATX
| RailTex Service Company, Inc. | 1 |
RB
| RB | 2 |
RBBB
| RBBB | 1 |
RBBX
| Ringling Bros. and Barnum and Bailey | 106 |
RBLX
| Brent C Lewis | 1 |
RBMN
| Reading Blue Mountain & Northern | 49 |
RBX
| Ringling Bros. and Barnum and Bailey | 55 |
RCBT
| RCBT | 3 |
RCIX
| Royal Celebrity Tours Inc. | 4 |
RCLX
| Macquarie Rail Inc | 1 |
RCPX
| Railcar Limited | 13 |
RCTH
| RCTH | 6 |
RDC
| RDC | 4 |
RDG
| Reading Railroad | 55 |
REBE
| REBE | 1 |
RERX
| Reader Railroad | 6 |
RETX
| RETX | 2 |
REX
| Railway Express Agency, Inc. | 2 |
RFFS
| RFFS | 11 |
RFP
| Richmond Fredericksburg & Potomac | 26 |
RGS
| Rio Grande Southern | 2 |
RHSX
| CentralNew York Chapter NRHS | 8 |
RI
| RI | 8 |
RING
| RING | 1 |
RIO
| RIO | 1 |
RJCR
| RJ Corman | 1 |
RM
| RM | 1 |
RMOX
| RMOX | 1 |
RMR
| RMR | 2 |
RMRX
| Great Canadian Railtours Co Ltd | 22 |
RMSX
| Pandrol Jackson Incorporated | 5 |
RNCX
| North Carolina Dept Of Transportation | 24 |
RNHX
| RNHX | 1 |
RNNX
| RNNX | 1 |
RNRH
| RNRH | 4 |
RNRR
| RNRR | 1 |
RNTX
| RNTX | 2 |
ROCK
| Rock Island | 4 |
RPCS
| RPCS | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 205 |
RPRX
| Rail Power Technologies | 2 |
RR
| Raritan River | 1 |
RRBX
| Rampart Range Corporation | 4 |
RRDX
| RRDX | 19 |
RROX
| RROX | 1 |
RRP
| RRP | 10 |
RRPX
| RR Power Leasing LLC | 2 |
RRV
| RRV | 1 |
RRVH
| RRVH | 1 |
RRVW
| Red River Valley and Western Railroad | 1 |
RTA
| Regional Transportation Authority | 10 |
RTD
| Regional Transportation District | 5 |
RTI
| Rail Tours | 10 |
RTIX
| RTI - Railroad Services | 6 |
RTRX
| Rocky Mountain Transportation Services | 1 |
RUMO
| RUMO | 2 |
RUT
| Vermont Railway Incorporated | 3 |
RV
| Rahway Valley R.R. | 1 |
RVIX
| Rail Ventures Inc | 5 |
RY
| RY | 1 |
RZD
| ??? Russian Railways | 1 |
SAL
| Seaboard Air Line | 42 |
SAM
| SAM | 9 |
SANT
| SANT | 1 |
SARM
| SARM | 2 |
SARX
| Southern Appalachia RR Museum | 1 |
SAS
| South African Railways | 177 |
SBB
| Swiss Railways | 11 |
SBC
| Ferrocarril Sonora Baja California | 13 |
SBCX
| SBCX | 1 |
SBD
| Seaboard System | 11 |
SBRR
| Stourbridge Railroad Company | 5 |
SBVR
| South Branch Valley Rail Road | 14 |
SC
| SC | 5 |
SCAX
| SOUTHERN CALIFORNIA REGIONAL RAIL AUTHORITY | 123 |
SCBG
| Santa Cruz Big Trees & Pacific | 18 |
SCD
| SCD | 42 |
SCHX
| Innophos, Inc | 1 |
SCL
| Seaboard Coast Line | 71 |
SCLX
| CanadianOxy Industrial Chemicals Limited Partnership | 3 |
SCRM
| SCRM | 1 |
SCRX
| SOUTH CAROLINA PUBLIC RAILWAYS | 1 |
SCT
| Sioux City Terminal Railway | 2 |
SCWX
| South Carolina Public Service Authority | 1 |
SCX
| SCX | 1 |
SDA
| SDA | 5 |
SDAE
| San Diego & Arizona Eastern | 1 |
SDNR
| SDNR | 2 |
SDNX
| Coaster | 24 |
SDRX
| Central Puget Sound Regional Transit Authority | 23 |
SEKR
| Southeast Kansas Railroad Company | 4 |
SEMT
| SEMT | 41 |
SEPW
| SEPW | 1 |
SEPX
| Southwestern Electric Power Company (La.) | 1 |
SERA
| Sierra Northern Railway | 18 |
SERM
| SERM | 1 |
SERX
| American Railcar Leasing, LLC | 1 |
SFD
| SFD | 1 |
SFG
| Societe du Chemin de Fer de la Gaspesie | 3 |
SFRV
| SFRV | 1 |
SFS
| Santa Fe Southern | 4 |
SFSR
| SFSR | 2 |
SGLR
| Seminole Gulf | 9 |
SHOS
| SHOS | 6 |
SHRR
| SHRR | 6 |
SHRS
| SHRS | 1 |
SHRX
| Smoky Hill Railway & Historical Society | 4 |
SIER
| SIER | 2 |
SIH
| SIH | 2 |
SIIX
| SIIX | 18 |
SILV
| SILV | 23 |
SJ
| SJ | 1 |
SJL
| St Johnsbury & Lamoille County RR | 1 |
SJLC
| SJLC | 2 |
SKER
| SKER | 3 |
SL
| Salt Lake Southern RR | 2 |
SLCC
| St. Louis Car Company | 6 |
SLCX
| St. Lawrence Cement Inc. | 3 |
SLE
| SLE | 1 |
SLGR
| SLGR | 1 |
SLGW
| Salt Lake Garfield and Western Railway Company | 6 |
SLIM
| St Louis, Iron Mountain & Southern | 3 |
SLR5
| SLR5 | 1 |
SLRC
| SLRC | 1 |
SLRG
| San Luis and Rio Grande Railroad | 88 |
SLRS
| SMS Rail Service Incorporated | 12 |
SLSF
| Saint Louis-San Francisco | 17 |
SLSR
| SLSR | 1 |
SLSX
| SLSX | 1 |
SLU
| SLU | 1 |
SLXX
| SLXX | 1 |
SM
| St. Marys Railroad | 2 |
SMLX
| SMLX | 1 |
SMPX
| Commercial Metal Company | 4 |
SMRR
| Sisseton Milbank Railroad Incorporated | 1 |
SMRX
| Atlanta Chapter B National Railway Historical Society Incorp | 1 |
SN
| Sacramento Northern | 1 |
SNC
| Saratoga & North Creek Railway | 5 |
SNCB
| SNCB | 2 |
SNCF
| French National Railways | 11 |
SNCR
| SNCR | 1 |
SNCT
| Seattle & North Coast R.R. Co. | 2 |
SNDX
| Sound Transit | 32 |
SOO
| Soo Line | 17 |
SOU
| Southern | 191 |
SOUN
| SOUN | 4 |
SP
| Southern Pacific | 218 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 57 |
SPMW
| Southern Pacific Maintenance of Way | 3 |
SPP
| SPP | 1 |
SPPR
| SPPR | 1 |
SPR
| SPR | 2 |
SPS
| Spokane Portland & Seattle | 39 |
SR
| Kansas City Southern | 2 |
SRBX
| SRBX | 3 |
SRC
| Strasburg Railroad | 26 |
SRCX
| Sid Richardson Carbon Company | 1 |
SRGX
| SRGX | 1 |
SRLG
| SRLG | 1 |
SRMX
| Southeastern Railway | 2 |
SRNJ
| Southern Railroad Company of New Jersey | 4 |
SRR
| SRR | 6 |
SRRL
| SRRL | 1 |
SRT
| SRT | 12 |
SRTX
| Southwind Rail Travel Ltd | 1 |
SRYC
| Sierra Railway Company of California | 10 |
SSCR
| SSCR | 1 |
SSRH
| SSRH | 6 |
SSRR
| Sacramento Southern | 3 |
ST
| Springfield Terminal | 6 |
STCU
| STCU | 2 |
STFR
| STFR | 1 |
STIB
| STIB | 1 |
STLI
| STLI | 2 |
STM
| STM | 6 |
STRS
| STRS | 1 |
STRT
| Stewartstown Railroad Company | 6 |
SUEX
| SUEX | 4 |
SVRR
| Shamokin Valley Railroad Company | 1 |
SVRY
| SVRY | 4 |
SW
| Southwestern Railroad Company | 9 |
SWEG
| SWEG | 1 |
SWGX
| Southwest Georgia Railroad Excursion Aut | 11 |
SWKR
| San Pedro and Southwestern Railway Compa | 1 |
TA
| TA | 2 |
TAHO
| TAHO | 1 |
TAIX
| Texas Alkyls Incorporated | 3 |
TAMA
| TAMA | 1 |
TASD
| Terminal Alabama State Docks | 1 |
TC
| Temple & Central Texas | 4 |
TC1
| Tennessee Central | 3 |
TCRX
| Tennessee Central Railway Musem | 25 |
TCRY
| Tri-City Railroad | 1 |
TDIX
| Transdynamic Leasing | 2 |
TECO
| TECO | 1 |
TEG
| TEG | 3 |
TEXA
| TEXA | 2 |
TFM
| Kansas City Southern De Mexico | 2 |
TG
| TG | 1 |
TGC3
| TGC3 | 1 |
THSX
| New York, Susquehanna & Western Rwy. | 7 |
TIOC
| Tioga Central | 10 |
TLEW
| TLEW | 7 |
TM
| Texas-Mexican | 2 |
TMBL
| Tacoma Municipal Belt Line Railway | 4 |
TMT
| Trailer Marine Transport Corporation | 1 |
TMTC
| TMTC | 3 |
TN
| Texas and Northern Railway Company | 1 |
TNO
| Texas & New Orleans | 6 |
TP
| Texas & Pacific | 1 |
TPHX
| Thomas Payne Holdings Incorporated | 1 |
TPR
| TPR | 1 |
TRCX
| Florida Tri-Rail | 32 |
TRMS
| TRMS | 1 |
TRR
| Tweetsie Railroad | 6 |
TRWX
| Trinity Railway Express | 14 |
TSBY
| Great Lakes Central Railroad | 1 |
TSR
| Texas State Railroad | 12 |
TSRR
| Tennessee Southern | 1 |
TSU
| Tulsa-Sapulpa Union Railway | 3 |
TT
| Toledo Terminal | 1 |
TTC
| Toronto Transit | 4 |
TTI
| Transkentucky Transportation | 1 |
TTRM
| TTRM | 1 |
TUCK
| TUCK | 1 |
TV
| TV | 1 |
TVR
| TVR | 1 |
TVRM
| Tennessee Valley | 35 |
TWCX
| Tidewater Chapter, NRHS | 3 |
TX
| TX | 1 |
TXSE
| TXSE | 1 |
TYRM
| TYRM | 1 |
U
| U | 1 |
UINT
| UINT | 1 |
UNKN
| UNKN | 1 |
UP
| Union Pacific Railroad Company | 256 |
UPP
| Union Pacific Passenger | 54 |
UR
| UR | 1 |
URHS
| URHS | 14 |
URY
| Union Ry. of Memphis | 2 |
USA
| USA | 4 |
USAF
| US Air Force | 1 |
USAX
| United States Army | 39 |
USFU
| US Department of Defense Air Force | 2 |
USHS
| USHS | 1 |
USN
| United States Navy | 1 |
USSC
| United States Sugar | 1 |
UT
| UT | 1 |
UTA
| UTA | 1 |
UTAX
| Utah Frontrunner | 48 |
UTLX
| Union Tank Car Company | 1 |
UTRY
| UTRY | 1 |
VALE
| Valley Railroad Company | 16 |
VBSE
| VBSE | 1 |
VC
| Virginia Central Railway | 3 |
VCRR
| Ventura County Railroad Company | 3 |
VGNX
| VGNX | 1 |
VIA
| Via Rail Canada | 420 |
VIRC
| VIRC | 1 |
VLIX
| Vintage Locomotives Inc | 4 |
VMC
| VMC | 2 |
VMTX
| VMTX | 1 |
VRE
| Virginia Railway Express | 79 |
VREX
| Virginia Railway Express | 3 |
VRIC
| Virginia Rail Investment | 1 |
VRIX
| VRIX | 1 |
VRRX
| VRRX | 2 |
VS
| V and S Railway Incorporated | 1 |
VT
| Virginia & Truckee | 20 |
VTR
| Vermont Railway | 2 |
VTRX
| VTRX | 5 |
WA
| Washington & Atlanta Railroad | 1 |
WAB
| Wabash | 20 |
WAMX
| Webb Asset Management | 1 |
WATX
| Watco | 5 |
WAWR
| WAWR | 1 |
WC
| Wisconsin Central | 7 |
WCE
| WCE | 4 |
WCEX
| WCEX | 1 |
WCLR
| Waccamaw Coastline | 9 |
WCR
| Waterloo Central | 1 |
WCRC
| Washington Central | 2 |
WCRL
| West Chester Railroad Company | 4 |
WCRR
| WCRR | 3 |
WCXX
| West Coast Railway Association | 2 |
WDW
| WDW | 2 |
WE
| Wheeling & Lake Erie | 2 |
WEBX
| WEBX | 5 |
WEX
| WEX | 4 |
WFT
| WFT | 1 |
WGN
| Wisconsin Great Northern | 6 |
WGNS
| Wisconsin Great Northern Railroad Inc | 14 |
WGNX
| WGNX | 1 |
WGRR
| WGRR | 2 |
WICT
| Wisconsin & Calumet | 4 |
WILL
| WILL | 2 |
WKS
| WKS | 2 |
WM
| Western Maryland | 9 |
WMAT
| WMAT | 3 |
WMSR
| Western Maryland Scenic | 7 |
WMTA
| WMTA | 3 |
WNYP
| Western New York and Pennsylvania | 2 |
WNYX
| Western New York Railway Historical Society | 2 |
WP
| Western Pacific | 14 |
WPMW
| Union Pacific Railroad Company | 4 |
WPRR
| Willamette and Pacific | 3 |
WPRX
| WPRX | 3 |
WPYR
| White Pass & Yukon Route | 72 |
WRA
| Western Railway of Alabama | 2 |
WRHX
| Creative Charters Inc | 7 |
WRIC
| WRIC | 1 |
WRLX
| Relco Tank Line Incorporated | 1 |
WRM
| WRM | 3 |
WRR
| WRR | 7 |
WRRX
| Waldens Ridge Railroad | 5 |
WRS
| Western Rail Switching Inc. | 1 |
WRSX
| Warren Railcar Service Incorporated | 1 |
WRX
| Western Refrigerator Line Company Termin | 1 |
WRYM
| WRYM | 1 |
WS
| Ware Shoals RR | 3 |
WSJR
| WSJR | 2 |
WSOR
| Wisconsin & Southern | 10 |
WSRR
| WSRR | 5 |
WT
| Wrightsville & Tennille | 4 |
WTMC
| WTMC | 4 |
WURR
| WURR | 4 |
WVC
| Durbin and Greenbrier Valley Railroad d/ | 6 |
WVN
| Kingswood Northern Incorporated d/b/a West Virginia Northern | 1 |
WVRR
| Whitewater Valley Railroad | 17 |
WW
| Winchester & Western | 3 |
WWF
| WWF | 2 |
WWRC
| Wilmington and Western Railroad | 8 |
WYCO
| Wyoming and Colorado Railroad | 2 |
XA
| XA | 1 |
XGM
| XGM | 1 |
YDHR
| YDHR | 1 |
YV
| YV | 1 |
YW
| Yreka Western Railroad Company | 1 |
ZB
| ZB | 1 |