AMTK
| Amtrak | 131 |
BDLX
| Big Dog Lines | 14 |
BDRV
| Belvidere & Delaware Railroad | 1 |
BRW
| Black River And Western | 3 |
CBQ
| Chicago Burlington & Quincy | 1 |
CDOT
| Conneticut Department of Transportation | 1 |
CNJ
| Central Rail Road of New Jersey | 4 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 9 |
DLW
| Delaware Lackawanna & Western | 5 |
EL
| Erie Lackawanna | 1 |
EV
| Everett Railroad | 3 |
LGSR
| LGSR | 5 |
MARC
| Maryland Transit Administration | 38 |
MBTA
| Massachusetts Bay Transit Authority | 4 |
ME
| Morristown & Erie Railroad | 9 |
MECR
| MECR | 1 |
METX
| METRA | 1 |
MNCR
| Metro North Commuter Railway | 21 |
NCRY
| Northern Central Railway | 1 |
NJT
| New Jersey Transit | 253 |
NPS
| NPS | 1 |
NS
| Norfolk Southern | 2 |
NYC
| New York Central | 2 |
NYCT
| NYCT | 4 |
NYOW
| New York, Ontario & Western | 1 |
NYSW
| New York Susquehanna & Western | 4 |
PPCX
| AAPRCO Register Private Cars | 18 |
PRR
| Pennsylvania Railroad | 4 |
PULL
| Pullman | 1 |
RBMN
| Reading Blue Mountain & Northern | 19 |
RDG
| Reading Railroad | 3 |
RPCX
| Railroad Passenger Car Numbering Bureau | 10 |
SLRG
| San Luis and Rio Grande Railroad | 2 |
TEG
| TEG | 5 |
THSX
| New York, Susquehanna & Western Rwy. | 1 |
VRIC
| Virginia Rail Investment | 2 |
WKS
| WKS | 2 |
WRM
| WRM | 3 |