AMTK
| Amtrak | 1 |
BCOL
| Canadian National Railways | 1 |
CIRR
| Chattahoochee Industrial Railroad | 7 |
CSX
| CSX Railroad | 3 |
DME
| Dakota, Minnesota and Eastern | 2 |
DRGW
| Denver & Rio Grande Western | 1 |
GFRR
| Georgia and Florida Railnet | 1 |
GTRA
| Golden Triangle Railroad | 1 |
HATX
| Helm Financial Corporation | 1 |
HLMX
| Helm Financial Corporation | 1 |
HS
| H and S Railroad Company | 1 |
KCS
| Kansas City Southern | 1 |
MB
| Meridian & Bigbee | 1 |
MEC
| Maine Central | 1 |
MRL
| Montana Rail Link | 1 |
NS
| Norfolk Southern | 1 |
SIRX
| Southern Illinois Railcar Company | 1 |
SMW
| St Marys Railway West LLC | 1 |
SOU
| Southern | 1 |
SP
| Southern Pacific | 2 |