AOK
| Arkansas-Oklahoma Railroad | 3 |
ATSF
| Atchison Topeka & Santa Fe | 5 |
ATW
| Atlantic and Western | 3 |
BKTY
| Union Pacific Railroad Company | 4 |
BNSF
| BNSF Railway | 9 |
CIBX
| CIT Group/Capital Finance, Inc | 1 |
CNA
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 1 |
COER
| Crab Orchard & Egyptian | 4 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 1 |
DWC
| Canadian National Railways | 1 |
FBOX
| TTX Company | 2 |
FLOX
| CIT Group/Capital Finance, Inc | 1 |
FXE
| Ferromex | 2 |
GTW
| Grand Trunk Western | 1 |
IBT
| International Bridge and Terminal Company | 7 |
IC
| Illinois Central | 2 |
KCS
| Kansas City Southern | 3 |
LRS
| Laurinburg and Southern | 4 |
MDW
| Minnesota Dakota and Western Railway Com | 2 |
MP
| Missouri Pacific | 1 |
MTNR
| Mississippi Tennessee Railroad LLC | 4 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 1 |
RBOX
| Railbox Company | 11 |
SOU
| Southern | 3 |
SP
| Southern Pacific | 2 |
SRN
| Sabine River & Northern | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TBOX
| TTX Company | 11 |
TR
| Tomahawk Railway L.P. | 2 |
UCRY
| Utah Central | 1 |