AOK
| Arkansas-Oklahoma Railroad | 1 |
BAR
| Bangor & Aroostook | 6 |
BN
| Burlington Northern | 11 |
BNSF
| BNSF Railway | 11 |
CN
| Canadian National Railways | 12 |
CNA
| Canadian National Railways | 32 |
CNIS
| Canadian National Railways | 4 |
CNW
| Chicago & Northwestern | 5 |
CP
| Canadian Pacific Railway | 1 |
CPAA
| Canadian Pacific Railway | 1 |
CR
| Conrail | 2 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 6 |
CV
| Central Vermont | 1 |
CVC
| Canadian National Railways | 3 |
DWC
| Canadian National Railways | 6 |
FBOX
| TTX Company | 19 |
GTW
| Grand Trunk Western | 6 |
IC
| Illinois Central | 2 |
KCS
| Kansas City Southern | 5 |
LRS
| Laurinburg and Southern | 1 |
LW
| Louisville and Wadley Railway Company | 6 |
MR
| McCloud Railway Company | 4 |
MRL
| Montana Rail Link | 1 |
MVRY
| Mahoning Valley Ry | 4 |
NOKL
| Northwestern Oklahoma | 7 |
NS
| Norfolk Southern | 45 |
ONT
| Ontario Northland Railway | 5 |
QC
| Quebec Central | 2 |
QGRY
| Quebec Gatineau Railway Incorporated | 4 |
SLGG
| Progress Rail Services Corporation | 2 |
SOO
| Soo Line | 3 |
SRY
| Southern Railway of British Columbia Lim | 11 |
TIMX
| Trinity Industries Leasing Company | 1 |
TR
| Tomahawk Railway L.P. | 7 |
VR
| Valdosta Railway | 1 |
WC
| Wisconsin Central | 34 |
WFRX
| WELLS FARGO RAIL CORPORATION | 8 |
YARR
| Youngstown and Austintown Railroad | 2 |
YKR
| York Rail | 2 |