ABOX
| TTX Company | 7 |
AGR
| Alabama and Gulf Coast | 3 |
ALM
| Arkansas Louisiana and Mississippi Railr | 5 |
AM
| Arkansas & Missouri | 2 |
ANR
| Angelina and Neches River Railroad | 1 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
ATW
| Atlantic and Western | 2 |
BAYL
| Bay Line, LLC | 2 |
BKTY
| Union Pacific Railroad Company | 45 |
BNSF
| BNSF Railway | 3 |
CEFX
| CIT Group/Capital Finance, Inc | 1 |
CEMX
| Cemex Mexico SA de CV | 1 |
CN
| Canadian National Railways | 3 |
CNW
| Chicago & Northwestern | 1 |
COER
| Crab Orchard & Egyptian | 3 |
CP
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 12 |
EEC
| East Erie Commercial Railroad | 1 |
FBOX
| TTX Company | 4 |
FCRD
| First Coast Railway | 7 |
FXE
| Ferromex | 7 |
GACX
| General American Marks Company | 1 |
GMRC
| Green Mountain RR | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTRA
| Golden Triangle Railroad | 1 |
GTW
| Grand Trunk Western | 1 |
HPJX
| Helm-Pacific Leasing | 3 |
HS
| H and S Railroad Company | 13 |
IBT
| International Bridge and Terminal Company | 7 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 18 |
LRS
| Laurinburg and Southern | 5 |
LW
| Louisville and Wadley Railway Company | 1 |
MP
| Missouri Pacific | 3 |
MTNR
| Mississippi Tennessee Railroad LLC | 1 |
NADX
| General Electric Rail Services | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NOKL
| Northwestern Oklahoma | 5 |
NS
| Norfolk Southern | 12 |
NYC
| New York Central | 1 |
OAR
| Old Augusta Railroad | 2 |
RBOX
| Railbox Company | 22 |
SOU
| Southern | 7 |
SP
| Southern Pacific | 16 |
SRN
| Sabine River & Northern | 10 |
SSW
| St Louis Southwestern (Cotton Belt) | 4 |
TBOX
| TTX Company | 15 |
TOE
| Texas Oklahoma and Eastern RR Company | 3 |
TOFX
| TTX Company - Box Cars | 1 |
TR
| Tomahawk Railway L.P. | 2 |
UP
| Union Pacific Railroad Company | 6 |
WC
| Wisconsin Central | 1 |
WP
| Western Pacific | 1 |
WRWK
| Providence & Worchester Railroad | 6 |
WSOR
| Wisconsin & Southern | 3 |