AOK
| Arkansas-Oklahoma Railroad | 4 |
BLE
| Bessemer & Lake Erie | 1 |
CN
| Canadian National Railways | 2 |
CP
| Canadian Pacific Railway | 2 |
CR
| Conrail | 113 |
CSX
| CSX Railroad | 3 |
EJE
| Elgin Joliet and Eastern | 2 |
GRW
| Gary Railway | 35 |
GTW
| Grand Trunk Western | 3 |
HS
| H and S Railroad Company | 1 |
IHB
| Indiana Harbor Belt | 4 |
KCS
| Kansas City Southern | 1 |
LW
| Louisville and Wadley Railway Company | 1 |
NDYX
| First Union Rail | 1 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 247 |
NSAX
| National Steel Corporation | 1 |
NW
| Norfolk & Western | 26 |
NYC
| New York Central | 1 |
RJCN
| R.J. Corman Railroad Company/ Allentown Lines Incorporated | 2 |
SOO
| Soo Line | 1 |
SOU
| Southern | 5 |
TFM
| Kansas City Southern De Mexico | 3 |
TR
| Tomahawk Railway L.P. | 2 |
UP
| Union Pacific Railroad Company | 1 |
WRWK
| Providence & Worchester Railroad | 1 |