AMTK
| Amtrak | 8 |
CSX
| CSX Railroad | 4 |
LN
| Louisville & Nashville | 3 |
NRHX
| National Railway Historical Society | 1 |
PPCX
| AAPRCO Register Private Cars | 8 |
PRR
| Pennsylvania Railroad | 1 |
PRWX
| Railway Entertainment Services Inc. | 1 |
RBBX
| Ringling Bros. and Barnum and Bailey | 32 |
RPCX
| Railroad Passenger Car Numbering Bureau | 1 |
SOU
| Southern | 1 |
VRRX
| VRRX | 2 |