ATW
| Atlantic and Western | 2 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 1 |
CP
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 48 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 5 |
LRS
| Laurinburg and Southern | 1 |
NCYR
| Nash County Railroad Corporation | 1 |
NS
| Norfolk Southern | 28 |
SIND
| Southern Indiana Railway Incorporated | 1 |
SOU
| Southern | 51 |
WRWK
| Providence & Worchester Railroad | 1 |