AGR
| Alabama and Gulf Coast | 27 |
ATW
| Atlantic and Western | 2 |
CIRR
| Chattahoochee Industrial Railroad | 3 |
CN
| Canadian National Railways | 2 |
CNA
| Canadian National Railways | 4 |
CNW
| Chicago & Northwestern | 5 |
CP
| Canadian Pacific Railway | 1 |
CPAA
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 61 |
FCRD
| First Coast Railway | 9 |
FXE
| Ferromex | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 12 |
GTW
| Grand Trunk Western | 1 |
HS
| H and S Railroad Company | 4 |
KCS
| Kansas City Southern | 3 |
MB
| Meridian & Bigbee | 1 |
MP
| Missouri Pacific | 37 |
MQT
| Marquette Rail | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NOKL
| Northwestern Oklahoma | 3 |
NS
| Norfolk Southern | 46 |
SCFE
| South Central Florida Express Incorporated | 2 |
SLGG
| Progress Rail Services Corporation | 1 |
SLSF
| Saint Louis-San Francisco | 1 |
SOU
| Southern | 50 |
WCCL
| Wisconsin Central | 5 |
WE
| Wheeling & Lake Erie | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 5 |