AERC
| Albany and Eastern Railroad Company | 5 |
AGR
| Alabama and Gulf Coast | 2 |
ALM
| Arkansas Louisiana and Mississippi Railr | 3 |
ALY
| Allegheny and Eastern Railroad Incorpora | 1 |
AN
| Apalachicola Northern | 2 |
ANGX
| Andersons - Railgroup | 2 |
AOK
| Arkansas-Oklahoma Railroad | 21 |
ASAB
| Bay Line Railroad LLC | 1 |
ATSF
| Atchison Topeka & Santa Fe | 21 |
ATW
| Atlantic and Western | 13 |
BAEX
| Andersons | 4 |
BCLR
| Bay Colony | 1 |
BCOL
| Canadian National Railways | 6 |
BM
| Boston & Maine | 2 |
BN
| Burlington Northern | 12 |
BNSF
| BNSF Railway | 121 |
BPRR
| Buffalo and Pittsburgh | 4 |
CBQ
| Chicago Burlington & Quincy | 1 |
CEFX
| CIT Group/Capital Finance, Inc | 2 |
CIC
| Cedar Rapids & Iowa City | 1 |
CIRR
| Chattahoochee Industrial Railroad | 6 |
CMHX
| CarMath Incorporated | 17 |
CN
| Canadian National Railways | 3 |
CNA
| Canadian National Railways | 13 |
CNW
| Chicago & Northwestern | 9 |
CP
| Canadian Pacific Railway | 1 |
CPAA
| Canadian Pacific Railway | 1 |
CR
| Conrail | 11 |
CRLE
| Coe Rail Incorporated | 28 |
CSX
| CSX Railroad | 94 |
CVC
| Canadian National Railways | 1 |
DME
| Dakota, Minnesota and Eastern | 3 |
DMHX
| Davenport Mammoet LLC | 1 |
DMM
| Dansville and Mount Morris Railroad Comp | 3 |
DRGW
| Denver & Rio Grande Western | 18 |
DWC
| Canadian National Railways | 4 |
EEC
| East Erie Commercial Railroad | 59 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
FBOX
| TTX Company | 1 |
FCCM
| Compania de Ferrocarriles Chiapas Mayab | 1 |
FCRD
| First Coast Railway | 4 |
FGLK
| Finger Lakes Railway | 4 |
FLOX
| CIT Group/Capital Finance, Inc | 2 |
FP
| Fordyce & Princeton Railroad Company | 1 |
FSRR
| FerroSur | 1 |
FXE
| Ferromex | 10 |
GACX
| General American Marks Company | 1 |
GMRC
| Green Mountain RR | 12 |
GNRR
| Georgia Northeastern | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 5 |
GTRA
| Golden Triangle Railroad | 2 |
GTW
| Grand Trunk Western | 4 |
GVSR
| Galveston Railroad L.P. | 6 |
HESR
| Huron and Eastern | 1 |
HPJX
| Helm-Pacific Leasing | 1 |
HS
| H and S Railroad Company | 53 |
IBT
| International Bridge and Terminal Company | 29 |
IC
| Illinois Central | 3 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 11 |
KELX
| Kellogg Company | 5 |
LBR
| Lowville and Beaver River Railroad Compa | 2 |
LNAC
| Chattahoochee Bay Railroad, LLC | 1 |
LW
| Louisville and Wadley Railway Company | 5 |
MB
| Meridian & Bigbee | 1 |
MCSA
| Moscow Camden and San Augustine Railroad | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MEC
| Maine Central | 5 |
MET
| Modesto and Empire Traction Company | 10 |
MMA
| Montreal, Maine & Atlantic | 5 |
MP
| Missouri Pacific | 39 |
MPCX
| Michels Corporation | 1 |
MQT
| Marquette Rail | 3 |
MRL
| Montana Rail Link | 3 |
MSDR
| Knoxville & Holston River Railroad | 1 |
MWCX
| Midwest Railcar Corporation | 3 |
NAR
| Northern Alberta Railways | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 10 |
NOKL
| Northwestern Oklahoma | 13 |
NRLX
| CIT Group/Capital Finance, Inc | 3 |
NS
| Norfolk Southern | 53 |
NW
| Norfolk & Western | 5 |
NYC
| New York Central | 16 |
OAR
| Old Augusta Railroad | 1 |
ONT
| Ontario Northland Railway | 3 |
PDRR
| Pee Dee River RR | 1 |
POHC
| Pittsburgh & Ohio Central | 1 |
PSMX
| Esco Corporation | 2 |
QGRY
| Quebec Gatineau Railway Incorporated | 1 |
RBOX
| Railbox Company | 4 |
RPMX
| RPMG INC | 1 |
SGLR
| Seminole Gulf | 2 |
SLC
| San Luis Central Railroad Company | 3 |
SLGG
| Progress Rail Services Corporation | 3 |
SLR
| St Lawrence & Atlantic | 4 |
SOO
| Soo Line | 1 |
SOU
| Southern | 34 |
SP
| Southern Pacific | 61 |
SRN
| Sabine River & Northern | 5 |
SRY
| Southern Railway of British Columbia Lim | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 36 |
TBOX
| TTX Company | 3 |
TCWR
| Twin Cities and Western | 1 |
TOE
| Texas Oklahoma and Eastern RR Company | 1 |
TR
| Tomahawk Railway L.P. | 15 |
UP
| Union Pacific Railroad Company | 48 |
WC
| Wisconsin Central | 13 |
WCCL
| Wisconsin Central | 2 |
WCOR
| Wellsboro and Corning Railroad Company | 1 |
WCTR
| WCTU Company White City Terminal Railway | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 3 |
WP
| Western Pacific | 7 |
WSOR
| Wisconsin & Southern | 12 |
YARR
| Youngstown and Austintown Railroad | 1 |
YB
| Youngstown Belt Railroad Company | 2 |
YKR
| York Rail | 3 |