AOK
| Arkansas-Oklahoma Railroad | 6 |
ATW
| Atlantic and Western | 2 |
BNSF
| BNSF Railway | 4 |
CAGY
| Columbus & Greenville Railway | 3 |
CN
| Canadian National Railways | 8 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 2 |
CXST
| CXST | 1 |
FXE
| Ferromex | 5 |
GTW
| Grand Trunk Western | 40 |
KCS
| Kansas City Southern | 3 |
NDYX
| First Union Rail | 2 |
NKLX
| NKLX | 6 |
NS
| Norfolk Southern | 53 |
NYC
| New York Central | 2 |
SMW
| St Marys Railway West LLC | 13 |
TILX
| Trinity Industries Leasing Company | 2 |
WRWK
| Providence & Worchester Railroad | 12 |