BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 7 |
CEFX
| CIT Group/Capital Finance, Inc | 1 |
CLC
| Columbia and Cowlitz Railway Company | 2 |
CNA
| Canadian National Railways | 1 |
CRLE
| Coe Rail Incorporated | 2 |
FBOX
| TTX Company | 5 |
IATR
| Iowa Traction Railroad Company | 1 |
IBT
| International Bridge and Terminal Company | 5 |
KCS
| Kansas City Southern | 1 |
LW
| Louisville and Wadley Railway Company | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 2 |
MNNR
| Minnesota Commercial | 1 |
MP
| Missouri Pacific | 2 |
MRL
| Montana Rail Link | 1 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 1 |
QC
| Quebec Central | 1 |
RVPR
| Riverport R.R., L.L.C. | 1 |
SOU
| Southern | 1 |
SP
| Southern Pacific | 4 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TR
| Tomahawk Railway L.P. | 1 |
UP
| Union Pacific Railroad Company | 5 |
VCY
| Galveston Railroad, L.P. | 2 |
WP
| Western Pacific | 1 |