ABOX
| TTX Company | 2 |
ADN
| Ashley Drew & Northern | 1 |
AGR
| Alabama and Gulf Coast | 2 |
ALM
| Arkansas Louisiana and Mississippi Railr | 4 |
ANR
| Angelina and Neches River Railroad | 2 |
AOK
| Arkansas-Oklahoma Railroad | 7 |
ATW
| Atlantic and Western | 5 |
BAEX
| Andersons | 2 |
BCOL
| Canadian National Railways | 1 |
BN
| Burlington Northern | 3 |
BNSF
| BNSF Railway | 3 |
CEMX
| Cemex Mexico SA de CV | 3 |
CHTT
| Chicago Heights Terminal Transfer | 1 |
CLC
| Columbia and Cowlitz Railway Company | 2 |
CN
| Canadian National Railways | 2 |
CNA
| Canadian National Railways | 2 |
CNIS
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 8 |
CP
| Canadian Pacific Railway | 1 |
CPAA
| Canadian Pacific Railway | 1 |
CR
| Conrail | 3 |
CSBX
| Cargill Incorporated Salt Division | 1 |
CSX
| CSX Railroad | 8 |
EEC
| East Erie Commercial Railroad | 8 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
FBOX
| TTX Company | 12 |
FLOX
| CIT Group/Capital Finance, Inc | 1 |
FSRR
| FerroSur | 2 |
FURX
| First Union Rail | 1 |
FXE
| Ferromex | 9 |
GMRC
| Green Mountain RR | 4 |
GMSR
| Kansas City Southern | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTW
| Grand Trunk Western | 2 |
GVSR
| Galveston Railroad L.P. | 3 |
HATX
| Helm Financial Corporation | 1 |
HS
| H and S Railroad Company | 18 |
IATR
| Iowa Traction Railroad Company | 1 |
IBT
| International Bridge and Terminal Company | 7 |
IC
| Illinois Central | 2 |
ICG
| Illinois Central Gulf | 2 |
KCS
| Kansas City Southern | 6 |
LRWN
| Little Rock & Western | 1 |
LW
| Louisville and Wadley Railway Company | 2 |
MDR
| Kansas City Southern | 1 |
MMA
| Montreal, Maine & Atlantic | 1 |
MP
| Missouri Pacific | 10 |
MSDR
| Knoxville & Holston River Railroad | 2 |
MVRY
| Mahoning Valley Ry | 1 |
MWCX
| Midwest Railcar Corporation | 3 |
NADX
| General Electric Rail Services | 3 |
NOKL
| Northwestern Oklahoma | 2 |
NRLX
| CIT Group/Capital Finance, Inc | 1 |
NS
| Norfolk Southern | 9 |
RBOX
| Railbox Company | 14 |
SLC
| San Luis Central Railroad Company | 1 |
SLR
| St Lawrence & Atlantic | 2 |
SOU
| Southern | 2 |
SP
| Southern Pacific | 21 |
SRN
| Sabine River & Northern | 11 |
SRY
| Southern Railway of British Columbia Lim | 1 |
SSAM
| Sault Ste. Marie Bridge Company (Canadia | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 12 |
STE
| Stockton Terminal and Eastern RR | 1 |
TBOX
| TTX Company | 20 |
UP
| Union Pacific Railroad Company | 11 |
WC
| Wisconsin Central | 7 |
WCCL
| Wisconsin Central | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 1 |