BN
| Burlington Northern | 3 |
CSX
| CSX Railroad | 10 |
GACX
| General American Marks Company | 17 |
GPSX
| Georgia-Pacific Corporation Eastern Wood Products Mfg.Divisi | 1 |
IFRX
| Infinity Rail LLC | 1 |
NS
| Norfolk Southern | 14 |
NW
| Norfolk & Western | 2 |
SAN
| Sandersville | 3 |
SBD
| Seaboard System | 1 |
SCL
| Seaboard Coast Line | 1 |
SOU
| Southern | 6 |