ANR
| Angelina and Neches River Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 2 |
BCOL
| Canadian National Railways | 1 |
BKTY
| Union Pacific Railroad Company | 1 |
BNSF
| BNSF Railway | 2 |
CEFX
| CIT Group/Capital Finance, Inc | 1 |
CLC
| Columbia and Cowlitz Railway Company | 1 |
CN
| Canadian National Railways | 1 |
CNIS
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 15 |
CP
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 2 |
DODX
| Department Of Defense | 1 |
DWC
| Canadian National Railways | 1 |
FBOX
| TTX Company | 1 |
FGWX
| Federal Grain Inspection Service (USDA) (Scale Test Cars) | 1 |
FXE
| Ferromex | 1 |
IBT
| International Bridge and Terminal Company | 3 |
IC
| Illinois Central | 1 |
KCS
| Kansas City Southern | 3 |
MCSA
| Moscow Camden and San Augustine Railroad | 1 |
MEC
| Maine Central | 2 |
MP
| Missouri Pacific | 5 |
MRL
| Montana Rail Link | 3 |
MWCX
| Midwest Railcar Corporation | 1 |
NS
| Norfolk Southern | 4 |
PGR
| Progressive Rail, Inc | 1 |
RBOX
| Railbox Company | 4 |
SMW
| St Marys Railway West LLC | 1 |
SOU
| Southern | 3 |
SP
| Southern Pacific | 9 |
SRY
| Southern Railway of British Columbia Lim | 5 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TBOX
| TTX Company | 21 |
UP
| Union Pacific Railroad Company | 2 |
UPP
| Union Pacific Passenger | 2 |
WP
| Western Pacific | 2 |