AOK
| Arkansas-Oklahoma Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
ATW
| Atlantic and Western | 3 |
BKTY
| Union Pacific Railroad Company | 3 |
BNSF
| BNSF Railway | 15 |
CIBX
| CIT Group/Capital Finance, Inc | 1 |
CIC
| Cedar Rapids & Iowa City | 1 |
CKIX
| C.K. Industries | 1 |
CNW
| Chicago & Northwestern | 5 |
COER
| Crab Orchard & Egyptian | 1 |
CP
| Canadian Pacific Railway | 1 |
CRLE
| Coe Rail Incorporated | 2 |
CSX
| CSX Railroad | 5 |
CUOH
| Columbus and Ohio River Railroad Company | 4 |
DRGW
| Denver & Rio Grande Western | 1 |
FSRR
| FerroSur | 1 |
FXE
| Ferromex | 1 |
GACX
| General American Marks Company | 3 |
HPJX
| Helm-Pacific Leasing | 2 |
HS
| H and S Railroad Company | 3 |
IANR
| Iowa Northern Ry | 1 |
IBT
| International Bridge and Terminal Company | 1 |
KCS
| Kansas City Southern | 2 |
LRS
| Laurinburg and Southern | 5 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MEC
| Maine Central | 4 |
MP
| Missouri Pacific | 17 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 6 |
NOKL
| Northwestern Oklahoma | 5 |
NRI
| Nebkota Railway Incorporated | 2 |
NS
| Norfolk Southern | 2 |
PSMX
| Esco Corporation | 1 |
RBOX
| Railbox Company | 4 |
SBD
| Seaboard System | 1 |
SLR
| St Lawrence & Atlantic | 4 |
SOU
| Southern | 6 |
SP
| Southern Pacific | 8 |
SSW
| St Louis Southwestern (Cotton Belt) | 3 |
TBOX
| TTX Company | 27 |
TILX
| Trinity Industries Leasing Company | 5 |
TOFX
| TTX Company - Box Cars | 4 |
TR
| Tomahawk Railway L.P. | 1 |
UP
| Union Pacific Railroad Company | 3 |
WP
| Western Pacific | 1 |
WSOR
| Wisconsin & Southern | 1 |