AOK
| Arkansas-Oklahoma Railroad | 171 |
ATW
| Atlantic and Western | 3 |
BKTY
| Union Pacific Railroad Company | 49 |
BNSF
| BNSF Railway | 2 |
GACX
| General American Marks Company | 72 |
KCS
| Kansas City Southern | 119 |
LRR
| Little River Railroad | 1 |
LRS
| Laurinburg and Southern | 409 |
MP
| Missouri Pacific | 12 |
WRWK
| Providence & Worchester Railroad | 45 |