AOK
| Arkansas-Oklahoma Railroad | 6 |
ATW
| Atlantic and Western | 6 |
BKTY
| Union Pacific Railroad Company | 2 |
BNSF
| BNSF Railway | 9 |
CHTT
| Chicago Heights Terminal Transfer | 1 |
COER
| Crab Orchard & Egyptian | 50 |
CP
| Canadian Pacific Railway | 9 |
CR
| Conrail | 3 |
CRLE
| Coe Rail Incorporated | 3 |
DWC
| Canadian National Railways | 12 |
GTW
| Grand Trunk Western | 1 |
KCS
| Kansas City Southern | 12 |
LW
| Louisville and Wadley Railway Company | 5 |
MP
| Missouri Pacific | 2 |
MTNR
| Mississippi Tennessee Railroad LLC | 36 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 8 |
NRLX
| CIT Group/Capital Finance, Inc | 1 |
NS
| Norfolk Southern | 17 |
NW
| Norfolk & Western | 1 |
SMW
| St Marys Railway West LLC | 2 |
SP
| Southern Pacific | 3 |
TBOX
| TTX Company | 199 |
TFM
| Kansas City Southern De Mexico | 10 |
TILX
| Trinity Industries Leasing Company | 7 |
TOBX
| TTX Company - Box Cars | 13 |
TR
| Tomahawk Railway L.P. | 6 |
UCRY
| Utah Central | 2 |
UP
| Union Pacific Railroad Company | 20 |