AMTK
| Amtrak | 1 |
ARR
| Alaska Railroad | 1 |
CTS
| Cumbres & Toltec Scenic | 1 |
DCSX
| DCSX | 1 |
DH
| Delaware & Hudson | 1 |
ETRC
| ETRC | 1 |
LI
| Long Island Rail Road Company | 3 |
NW
| Norfolk & Western | 1 |
ONT
| Ontario Northland Railway | 1 |
RBMN
| Reading Blue Mountain & Northern | 1 |
RDG
| Reading Railroad | 1 |
REX
| Railway Express Agency, Inc. | 1 |