AM
| Arkansas & Missouri | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 3 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CNW
| Chicago & Northwestern | 2 |
CP
| Canadian Pacific Railway | 8 |
FCRD
| First Coast Railway | 1 |
FXE
| Ferromex | 1 |
HS
| H and S Railroad Company | 2 |
IATR
| Iowa Traction Railroad Company | 1 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 7 |
MQT
| Marquette Rail | 2 |
NOPB
| New Orleans Public Belt Railroad | 1 |
ONT
| Ontario Northland Railway | 1 |
SLGG
| Progress Rail Services Corporation | 1 |
SOU
| Southern | 4 |
SRN
| Sabine River & Northern | 1 |
WGCR
| Wiregrass Central Railroad. Incorporated | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 2 |