AMTK
| Amtrak | 6 |
CBQ
| Chicago Burlington & Quincy | 1 |
CDOT
| Conneticut Department of Transportation | 3 |
CSX
| CSX Railroad | 7 |
EV
| Everett Railroad | 1 |
MBTA
| Massachusetts Bay Transit Authority | 6 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
MRLX
| Mid America Rail Car Leasing | 3 |
NJT
| New Jersey Transit | 4 |
NRHX
| National Railway Historical Society | 2 |
NS
| Norfolk Southern | 5 |
PPCX
| AAPRCO Register Private Cars | 2 |
RBBX
| Ringling Bros. and Barnum and Bailey | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 9 |
SLRG
| San Luis and Rio Grande Railroad | 2 |