AOK
| Arkansas-Oklahoma Railroad | 4 |
BAR
| Bangor & Aroostook | 6 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 6 |
CN
| Canadian National Railways | 13 |
CNA
| Canadian National Railways | 24 |
CNIS
| Canadian National Railways | 4 |
CNW
| Chicago & Northwestern | 2 |
CP
| Canadian Pacific Railway | 3 |
CRLE
| Coe Rail Incorporated | 5 |
CSX
| CSX Railroad | 6 |
CV
| Central Vermont | 1 |
CVC
| Canadian National Railways | 4 |
DL
| Delaware-Lackawanna Railroad Company | 2 |
DWC
| Canadian National Railways | 11 |
FBOX
| TTX Company | 15 |
GMRC
| Green Mountain RR | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTW
| Grand Trunk Western | 13 |
IC
| Illinois Central | 1 |
ICG
| Illinois Central Gulf | 3 |
KCS
| Kansas City Southern | 13 |
LRS
| Laurinburg and Southern | 4 |
LW
| Louisville and Wadley Railway Company | 14 |
MMA
| Montreal, Maine & Atlantic | 4 |
NOKL
| Northwestern Oklahoma | 7 |
NS
| Norfolk Southern | 27 |
ONT
| Ontario Northland Railway | 4 |
QC
| Quebec Central | 1 |
QGRY
| Quebec Gatineau Railway Incorporated | 12 |
SLGG
| Progress Rail Services Corporation | 2 |
SLR
| St Lawrence & Atlantic | 1 |
SOO
| Soo Line | 2 |
SRY
| Southern Railway of British Columbia Lim | 7 |
TR
| Tomahawk Railway L.P. | 15 |
WC
| Wisconsin Central | 35 |
YARR
| Youngstown and Austintown Railroad | 1 |
YKR
| York Rail | 4 |