AMTK
| Amtrak | 4 |
BMCX
| Bluewater Michigan Chapter Incorporated | 4 |
BNSF
| BNSF Railway | 2 |
BOMX
| B&O Railroad Museum Inc. | 1 |
CBQ
| Chicago Burlington & Quincy | 1 |
CHS
| Charlotte Southern | 2 |
CN
| Canadian National Railways | 8 |
CO
| Chesapeake & Ohio | 1 |
CSX
| CSX Railroad | 2 |
DM
| Detroit & Mackinac | 2 |
DODX
| Department Of Defense | 1 |
DOTX
| USDOT/Federal Railroad Administration | 1 |
FICX
| Frontier Industrial Corp | 1 |
FRYX
| Federated Railways Inc | 8 |
GLC
| Great Lakes Central Railroad | 1 |
GTDR
| GTDR | 2 |
IAIS
| Iowa Interstate | 5 |
IC
| Illinois Central | 2 |
LN
| Louisville & Nashville | 2 |
MILW
| Milwaukee Road | 4 |
MKT
| Missouri-Kansas-Texas | 1 |
NS
| Norfolk Southern | 7 |
NSC
| NSC | 2 |
NYC
| New York Central | 1 |
OHCR
| Ohio Central | 1 |
PPCX
| AAPRCO Register Private Cars | 7 |
PRR
| Pennsylvania Railroad | 1 |
RANX
| RANX | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 1 |
SP
| Southern Pacific | 1 |
UPP
| Union Pacific Passenger | 3 |
VRE
| Virginia Railway Express | 1 |