AEX
| Andersons | 3 |
AGLF
| Knoxville & Holston River Railroad | 4 |
BLE
| Bessemer & Lake Erie | 3 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 5 |
BO
| Baltimore & Ohio | 5 |
CBQ
| Chicago Burlington & Quincy | 2 |
CI
| Cambria and Indiana Railroad Company | 1 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CNW
| Chicago & Northwestern | 1 |
CO
| Chesapeake & Ohio | 1 |
CR
| Conrail | 1 |
CRR
| Clinchfield | 2 |
CS
| Colorado & Southern | 2 |
CSX
| CSX Railroad | 30 |
CTRN
| Union Pacific Railroad Company | 1 |
CYDX
| Conrad Yelvington Distributors | 1 |
EL
| Erie Lackawanna | 6 |
FEC
| Florida East Coast | 3 |
GA
| Georgia Railroad | 1 |
GLIX
| GLIX | 1 |
GMO
| Gulf Mobile & Ohio | 1 |
GN
| Great Northern | 1 |
HLMX
| Helm Financial Corporation | 2 |
KCS
| Kansas City Southern | 2 |
KGLX
| Commonwealth Edison Company | 2 |
LN
| Louisville & Nashville | 10 |
MB
| Meridian & Bigbee | 1 |
MMID
| Maryland Midland | 1 |
MP
| Missouri Pacific | 3 |
MPA
| Maryland and Pennsylvania Railroad | 2 |
NOKL
| Northwestern Oklahoma | 2 |
NS
| Norfolk Southern | 3 |
NYC
| New York Central | 5 |
PC
| Penn Central | 7 |
PRR
| Pennsylvania Railroad | 2 |
SCL
| Seaboard Coast Line | 8 |
SOU
| Southern | 1 |
SPSX
| Progress Rail Services Corp | 2 |
TRAX
| RailAmerica | 1 |
UP
| Union Pacific Railroad Company | 1 |
WE
| Wheeling & Lake Erie | 4 |
WM
| Western Maryland | 3 |