AGR
| Alabama and Gulf Coast | 17 |
BNSF
| BNSF Railway | 2 |
CIRR
| Chattahoochee Industrial Railroad | 31 |
CMHX
| CarMath Incorporated | 12 |
CSX
| CSX Railroad | 50 |
KCS
| Kansas City Southern | 1 |
MP
| Missouri Pacific | 3 |
NS
| Norfolk Southern | 4 |
SOU
| Southern | 3 |
WP
| Western Pacific | 2 |
WRWK
| Providence & Worchester Railroad | 1 |