AGR
| Alabama and Gulf Coast | 1 |
ATW
| Atlantic and Western | 1 |
BKTY
| Union Pacific Railroad Company | 5 |
EEC
| East Erie Commercial Railroad | 2 |
GTRA
| Golden Triangle Railroad | 2 |
LRS
| Laurinburg and Southern | 4 |
MB
| Meridian & Bigbee | 2 |
MEC
| Maine Central | 2 |
MSDR
| Knoxville & Holston River Railroad | 2 |
NS
| Norfolk Southern | 5 |
SMW
| St Marys Railway West LLC | 1 |
SOU
| Southern | 1 |