BCOL
| Canadian National Railways | 1 |
BNSF
| BNSF Railway | 5 |
BR
| Buffalo and Pittsburgh | 2 |
CNA
| Canadian National Railways | 2 |
CSX
| CSX Railroad | 10 |
HLSC
| Hampton Railway Incorporated | 6 |
MEC
| Maine Central | 2 |
MSRC
| Kansas City Southern | 2 |
ONT
| Ontario Northland Railway | 1 |
TTZX
| TTX Company-Centerbeam Flats | 15 |
WRWK
| Providence & Worchester Railroad | 1 |