CP
| Canadian Pacific Railway | 1 |
CSAO
| Conrail Shared Assets | 17 |
CSRR
| Conway Scenic | 2 |
CSX
| CSX Railroad | 42 |
CTA
| Chicago Transit Authority | 2 |
DODX
| Department Of Defense | 2 |
DSEX
| East Carbon Development Company | 1 |
EBT
| East Broad Top | 1 |
GIMX
| General American Marks Company | 1 |
KRL
| Kasgro Rail Lines | 7 |
NYC
| New York Central | 67 |
PRR
| Pennsylvania Railroad | 3 |
QTTX
| TTX Company | 10 |
SNJX
| SOUTHERN NEW JERSEY RAIL GROUP LLC | 1 |
SPAX
| Southeastern Pennsylvania Transportation (SEPTA) | 1 |
WW
| Winchester & Western | 1 |
XTTX
| TTX Company | 3 |