CBQ
| Chicago Burlington & Quincy | 13 |
MRLX
| Mid America Rail Car Leasing | 20 |
NRHX
| National Railway Historical Society | 11 |
NS
| Norfolk Southern | 11 |
NYC
| New York Central | 1 |
PPCX
| AAPRCO Register Private Cars | 6 |
RPCX
| Railroad Passenger Car Numbering Bureau | 7 |
SLRG
| San Luis and Rio Grande Railroad | 13 |