CO
| Chesapeake & Ohio | 4 |
CR
| Conrail | 11 |
CSX
| CSX Railroad | 4 |
DLW
| Delaware Lackawanna & Western | 1 |
EBT
| East Broad Top | 2 |
GACX
| General American Marks Company | 1 |
GGPX
| General American Marks Company | 1 |
GNRR
| Georgia Northeastern | 1 |
HKGX
| Haines & Kibblehouse Inc. | 5 |
LN
| Louisville & Nashville | 1 |
NS
| Norfolk Southern | 4 |
NYC
| New York Central | 3 |
PPLX
| Pennsylvania Power and Light Company | 1 |
RBMN
| Reading Blue Mountain & Northern | 2 |
RRLX
| Rail Logistics, LC | 1 |
SOU
| Southern | 2 |
UCEX
| Union Electric Company | 1 |
WE
| Wheeling & Lake Erie | 2 |
WIMX
| Wimpey Minerals USA, Inc. | 4 |
YARR
| Youngstown and Austintown Railroad | 1 |