AMTK
| Amtrak | 59 |
BLE
| Bessemer & Lake Erie | 5 |
BPRR
| Buffalo and Pittsburgh | 3 |
CN
| Canadian National Railways | 8 |
CNSM
| CHICAGO NORTH SHORE & MILWAUKEE RWY | 1 |
CP
| Canadian Pacific Railway | 3 |
CR
| Conrail | 2 |
CSX
| CSX Railroad | 20 |
DB
| Deutsche Bahn | 4 |
DL
| Delaware-Lackawanna Railroad Company | 4 |
EBT
| East Broad Top | 7 |
ERIE
| Erie Railroad | 2 |
EV
| Everett Railroad | 4 |
GECX
| General Electric Company | 1 |
GN
| Great Northern | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 21 |
GOT
| GO Transit | 2 |
KKRR
| Knox and Kane Railroad Company | 3 |
LAL
| Livonia Avon & Lakeville | 1 |
LVRR
| Lycoming Valley | 1 |
NS
| Norfolk Southern | 75 |
NSHR
| North Shore | 9 |
NW
| Norfolk & Western | 2 |
NYC
| New York Central | 5 |
NYLE
| New York and Lake Erie Railroad Company | 2 |
OHCR
| Ohio Central | 1 |
PC
| Penn Central | 2 |
PLE
| Pittsburgh & Lake Erie | 3 |
PRR
| Pennsylvania Railroad | 9 |
PS
| Pittsburg and Shawmut Railroad Company | 4 |
PSR
| Pittsburg and Shawmut Railroad Incorporated | 1 |
RDG
| Reading Railroad | 6 |
REX
| Railway Express Agency, Inc. | 2 |
RJCP
| R.J. Corman Railroad Company/ Pennsylvan | 20 |
SOR
| Southern Ontario Railway | 1 |
SP
| Southern Pacific | 1 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 1 |
SRC
| Strasburg Railroad | 1 |
SRS
| Sperry Rail Service | 11 |
TCSR
| Norfolk Southern Corporation | 2 |
TIOC
| Tioga Central | 1 |
TRCX
| Florida Tri-Rail | 2 |
URR
| Union Railroad | 1 |
WNYP
| Western New York and Pennsylvania | 15 |
WRSX
| Warren Railcar Service Incorporated | 1 |
YRC
| York Rail | 2 |