ATSF
| Atchison Topeka & Santa Fe | 34 |
BN
| Burlington Northern | 3 |
BNSF
| BNSF Railway | 5 |
BO
| Baltimore & Ohio | 4 |
CN
| Canadian National Railways | 1 |
CNA
| Canadian National Railways | 63 |
CNW
| Chicago & Northwestern | 67 |
CO
| Chesapeake & Ohio | 2 |
CPAA
| Canadian Pacific Railway | 9 |
CR
| Conrail | 578 |
CSX
| CSX Railroad | 225 |
DTI
| Detroit Toledo & Ironton | 4 |
GACX
| General American Marks Company | 1 |
GLSX
| Glacier State Distribution Services Incorporated | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 10 |
GTW
| Grand Trunk Western | 190 |
GVSR
| Galveston Railroad L.P. | 2 |
HCSX
| Helm Chesapeake LLP | 12 |
HLMX
| Helm Financial Corporation | 26 |
IC
| Illinois Central | 8 |
ICG
| Illinois Central Gulf | 25 |
KCSM
| Kansas City Southern De Mexico | 2 |
LRWN
| Little Rock & Western | 1 |
MILW
| Milwaukee Road | 18 |
MP
| Missouri Pacific | 218 |
NADX
| General Electric Rail Services | 4 |
NS
| Norfolk Southern | 821 |
NW
| Norfolk & Western | 74 |
NYC
| New York Central | 251 |
PC
| Penn Central | 1 |
PLTX
| Potlatch Corporation | 11 |
RMMX
| Andersons - Railgroup | 7 |
SOU
| Southern | 147 |
SP
| Southern Pacific | 32 |
SSW
| St Louis Southwestern (Cotton Belt) | 38 |
TFM
| Kansas City Southern De Mexico | 1 |
UP
| Union Pacific Railroad Company | 77 |
WCRC
| Washington Central | 2 |
WHCX
| Western Hay Company | 1 |
WP
| Western Pacific | 60 |