ABOX
| TTX Company | 2 |
ADN
| Ashley Drew & Northern | 1 |
AGR
| Alabama and Gulf Coast | 7 |
AKMD
| Arkansas Midland Railroad Company | 7 |
ALAB
| Alabama Railroad | 2 |
ALM
| Arkansas Louisiana and Mississippi Railr | 12 |
ALY
| Allegheny and Eastern Railroad Incorpora | 1 |
AM
| Arkansas & Missouri | 3 |
AMC
| Arkansas Louisiana and Mississippi Railr | 1 |
AMTK
| Amtrak | 3 |
ANR
| Angelina and Neches River Railroad | 3 |
AOK
| Arkansas-Oklahoma Railroad | 27 |
ATSF
| Atchison Topeka & Santa Fe | 8 |
ATW
| Atlantic and Western | 12 |
BAEX
| Andersons | 4 |
BAR
| Bangor & Aroostook | 1 |
BCIT
| Canadian National Railways | 6 |
BCOL
| Canadian National Railways | 14 |
BM
| Boston & Maine | 2 |
BN
| Burlington Northern | 15 |
BNSF
| BNSF Railway | 49 |
BPRR
| Buffalo and Pittsburgh | 1 |
BR
| Buffalo and Pittsburgh | 4 |
CBQ
| Chicago Burlington & Quincy | 1 |
CCR
| Corinth & Counce | 1 |
CEFX
| CIT Group/Capital Finance, Inc | 3 |
CHTT
| Chicago Heights Terminal Transfer | 27 |
CIBX
| CIT Group/Capital Finance, Inc | 2 |
CLC
| Columbia and Cowlitz Railway Company | 2 |
CMHX
| CarMath Incorporated | 4 |
CN
| Canadian National Railways | 21 |
CNA
| Canadian National Railways | 23 |
CNIS
| Canadian National Railways | 6 |
CNW
| Chicago & Northwestern | 31 |
CO
| Chesapeake & Ohio | 1 |
COER
| Crab Orchard & Egyptian | 8 |
CP
| Canadian Pacific Railway | 13 |
CPAA
| Canadian Pacific Railway | 3 |
CR
| Conrail | 39 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 199 |
CV
| Central Vermont | 3 |
CVC
| Canadian National Railways | 4 |
DME
| Dakota, Minnesota and Eastern | 3 |
DODX
| Department Of Defense | 1 |
DRGW
| Denver & Rio Grande Western | 2 |
DTI
| Detroit Toledo & Ironton | 2 |
DUPX
| Du Pont De Nemours and Company Incorporated | 1 |
DVS
| Delta Valley and Southern Railway Compan | 1 |
DWC
| Canadian National Railways | 26 |
EEC
| East Erie Commercial Railroad | 76 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
FBOX
| TTX Company | 28 |
FCCM
| Compania de Ferrocarriles Chiapas Mayab | 2 |
FCRD
| First Coast Railway | 10 |
FLOX
| CIT Group/Capital Finance, Inc | 6 |
FP
| Fordyce & Princeton Railroad Company | 2 |
FRR
| Falls Road Railroad Company Incorporated | 2 |
FSRR
| FerroSur | 4 |
FXE
| Ferromex | 35 |
GACX
| General American Marks Company | 9 |
GNWR
| Genesee and Wyoming Railroad Company | 10 |
GTRA
| Golden Triangle Railroad | 2 |
GTW
| Grand Trunk Western | 42 |
GVSR
| Galveston Railroad L.P. | 5 |
HCGX
| COMPASS MINERALS INTERNATIONAL INC | 4 |
HESR
| Huron and Eastern | 2 |
HLMX
| Helm Financial Corporation | 1 |
HPJX
| Helm-Pacific Leasing | 13 |
HS
| H and S Railroad Company | 17 |
IATR
| Iowa Traction Railroad Company | 3 |
IBT
| International Bridge and Terminal Company | 12 |
IC
| Illinois Central | 9 |
ICG
| Illinois Central Gulf | 3 |
ITLX
| General Electric Rail Services | 2 |
KCS
| Kansas City Southern | 59 |
KCSM
| Kansas City Southern De Mexico | 4 |
KRR
| Kiamichi | 1 |
KXHR
| Knoxville & Holston River RR | 1 |
LATR
| LATR | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 3 |
LC
| Lancaster & Chester | 2 |
LNAC
| Chattahoochee Bay Railroad, LLC | 1 |
LRWN
| Little Rock & Western | 12 |
LSRC
| Lake State Railway Company | 2 |
LW
| Louisville and Wadley Railway Company | 6 |
MB
| Meridian & Bigbee | 1 |
MCSA
| Moscow Camden and San Augustine Railroad | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 3 |
MEC
| Maine Central | 12 |
MILW
| Milwaukee Road | 1 |
MKT
| Missouri-Kansas-Texas | 1 |
MMA
| Montreal, Maine & Atlantic | 6 |
MNNR
| Minnesota Commercial | 1 |
MP
| Missouri Pacific | 70 |
MQT
| Marquette Rail | 5 |
MRL
| Montana Rail Link | 6 |
MRS
| Manufacturers Railway | 51 |
MSDR
| Knoxville & Holston River Railroad | 5 |
MSE
| Mississippi Export Railroad Company | 1 |
MWCX
| Midwest Railcar Corporation | 19 |
NADX
| General Electric Rail Services | 5 |
NAR
| Northern Alberta Railways | 2 |
NDYK
| NDYK | 1 |
NDYX
| First Union Rail | 3 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 22 |
NOKL
| Northwestern Oklahoma | 18 |
NS
| Norfolk Southern | 412 |
NW
| Norfolk & Western | 31 |
NWR
| Nashville & Western Railroad Corp. | 1 |
NYC
| New York Central | 85 |
OAR
| Old Augusta Railroad | 5 |
PDRR
| Pee Dee River RR | 1 |
PGR
| Progressive Rail, Inc | 1 |
QAR
| QAR | 1 |
QC
| Quebec Central | 1 |
QGRY
| Quebec Gatineau Railway Incorporated | 1 |
RBOX
| Railbox Company | 15 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 4 |
SFLC
| BNSF Railway | 19 |
SGLR
| Seminole Gulf | 7 |
SLC
| San Luis Central Railroad Company | 4 |
SLGG
| Progress Rail Services Corporation | 3 |
SLR
| St Lawrence & Atlantic | 2 |
SOO
| Soo Line | 2 |
SOU
| Southern | 56 |
SP
| Southern Pacific | 170 |
SRAX
| Southern Rail Associates | 2 |
SRN
| Sabine River & Northern | 7 |
SSAM
| Sault Ste. Marie Bridge Company (Canadia | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 43 |
STE
| Stockton Terminal and Eastern RR | 5 |
STM
| STM | 1 |
TBOX
| TTX Company | 54 |
TFM
| Kansas City Southern De Mexico | 15 |
TOE
| Texas Oklahoma and Eastern RR Company | 5 |
TOFX
| TTX Company - Box Cars | 3 |
TR
| Tomahawk Railway L.P. | 6 |
TSE
| Texas South-Eastern Railroad Company | 2 |
UP
| Union Pacific Railroad Company | 157 |
UPP
| Union Pacific Passenger | 1 |
VCY
| Galveston Railroad, L.P. | 5 |
WAB
| Wabash | 1 |
WC
| Wisconsin Central | 37 |
WCCL
| Wisconsin Central | 8 |
WCOR
| Wellsboro and Corning Railroad Company | 2 |
WE
| Wheeling & Lake Erie | 1 |
WGCR
| Wiregrass Central Railroad. Incorporated | 4 |
WLO
| Waterloo Railway Company (Illinois Central) | 6 |
WP
| Western Pacific | 17 |
WSOR
| Wisconsin & Southern | 10 |
WTRM
| Warren and Trumbull Railroad Company | 2 |
YARR
| Youngstown and Austintown Railroad | 3 |
YKR
| York Rail | 8 |