AGR
| Alabama and Gulf Coast | 1 |
CSX
| CSX Railroad | 5 |
FCRD
| First Coast Railway | 1 |
IC
| Illinois Central | 1 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 1 |
SLGG
| Progress Rail Services Corporation | 1 |
SOU
| Southern | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 2 |