BTCX
| Browner Turnout Company | 2 |
CP
| Canadian Pacific Railway | 1 |
CR
| Conrail | 3 |
CSX
| CSX Railroad | 3 |
DODX
| Department Of Defense | 4 |
ETTX
| TTX Company - Autoracks | 1 |
FURX
| First Union Rail | 1 |
GECX
| General Electric Company | 1 |
HKRX
| HKRX | 1 |
HTTX
| TTX Company | 2 |
IARX
| InStar Leasing | 2 |
ITTX
| TTX Company | 2 |
LMIC
| Lake Michigan & Indiana Railroad | 1 |
NS
| Norfolk Southern | 1 |
NW
| Norfolk & Western | 1 |
OTTX
| TTX Company | 4 |
PC
| Penn Central | 1 |
PRR
| Pennsylvania Railroad | 1 |
PTTX
| TTX Company | 1 |
QTTX
| TTX Company | 3 |
QUAX
| Redstreak, LLC | 2 |
TPDX
| TPDX | 2 |
TTOX
| TTX Company | 1 |
TTUX
| TTX Company | 1 |
TZPR
| Tazewell & Peoria Railroad | 1 |
XTTX
| TTX Company | 1 |