ATW
| Atlantic and Western | 1 |
BAR
| Bangor & Aroostook | 16 |
BN
| Burlington Northern | 15 |
BNSF
| BNSF Railway | 3 |
CN
| Canadian National Railways | 4 |
CNW
| Chicago & Northwestern | 5 |
CP
| Canadian Pacific Railway | 9 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 2 |
CVC
| Canadian National Railways | 7 |
DWC
| Canadian National Railways | 5 |
FBOX
| TTX Company | 3 |
GTW
| Grand Trunk Western | 4 |
KCS
| Kansas City Southern | 3 |
LW
| Louisville and Wadley Railway Company | 5 |
MDW
| Minnesota Dakota and Western Railway Com | 2 |
MMA
| Montreal, Maine & Atlantic | 9 |
MR
| McCloud Railway Company | 2 |
MVRY
| Mahoning Valley Ry | 1 |
NOKL
| Northwestern Oklahoma | 2 |
NS
| Norfolk Southern | 1 |
ONT
| Ontario Northland Railway | 15 |
QC
| Quebec Central | 1 |
QGRY
| Quebec Gatineau Railway Incorporated | 4 |
SLGG
| Progress Rail Services Corporation | 1 |
SOO
| Soo Line | 3 |
SRY
| Southern Railway of British Columbia Lim | 2 |
TR
| Tomahawk Railway L.P. | 2 |
WC
| Wisconsin Central | 69 |
WE
| Wheeling & Lake Erie | 3 |
YARR
| Youngstown and Austintown Railroad | 5 |
YKR
| York Rail | 2 |