ADN
| Ashley Drew & Northern | 6 |
AGR
| Alabama and Gulf Coast | 3 |
AMTK
| Amtrak | 7 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
ATW
| Atlantic and Western | 3 |
BLHX
| SMBC RAIL SERVICES LLC | 7 |
BNSF
| BNSF Railway | 1 |
CBQ
| Chicago Burlington & Quincy | 6 |
CP
| Canadian Pacific Railway | 2 |
CR
| Conrail | 4 |
CSX
| CSX Railroad | 6 |
DH
| Delaware & Hudson | 1 |
ERIE
| Erie Railroad | 1 |
FSRR
| FerroSur | 1 |
GACX
| General American Marks Company | 1 |
GMRC
| Green Mountain RR | 3 |
GTW
| Grand Trunk Western | 2 |
HMLX
| HMLX | 1 |
HS
| H and S Railroad Company | 3 |
KCS
| Kansas City Southern | 3 |
LRS
| Laurinburg and Southern | 2 |
LW
| Louisville and Wadley Railway Company | 1 |
MEC
| Maine Central | 5 |
MP
| Missouri Pacific | 3 |
MWCX
| Midwest Railcar Corporation | 3 |
NW
| Norfolk & Western | 3 |
NYC
| New York Central | 6 |
NYNH
| NYNH | 1 |
PC
| Penn Central | 1 |
PRR
| Pennsylvania Railroad | 1 |
RBOX
| Railbox Company | 1 |
SCL
| Seaboard Coast Line | 3 |
SLR
| St Lawrence & Atlantic | 1 |
SOU
| Southern | 2 |
SP
| Southern Pacific | 4 |
SSW
| St Louis Southwestern (Cotton Belt) | 3 |