AMTK
| Amtrak | 4 |
CSX
| CSX Railroad | 4 |
MBTA
| Massachusetts Bay Transit Authority | 1 |
NJT
| New Jersey Transit | 7 |
NS
| Norfolk Southern | 4 |
NYC
| New York Central | 2 |
PPCX
| AAPRCO Register Private Cars | 1 |
PRR
| Pennsylvania Railroad | 2 |
RBBX
| Ringling Bros. and Barnum and Bailey | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 1 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 3 |
TUCK
| TUCK | 1 |