BN
| Burlington Northern | 1 |
CR
| Conrail | 2 |
CSX
| CSX Railroad | 19 |
DODX
| Department Of Defense | 24 |
HTTX
| TTX Company | 1 |
IC
| Illinois Central | 1 |
ITTX
| TTX Company | 7 |
LIRC
| Louisville & Indiana | 2 |
LN
| Louisville & Nashville | 2 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
MON
| Monon Route | 1 |
NTKX
| VAE Nortrak North America Incorporated | 2 |
NW
| Norfolk & Western | 3 |
NYC
| New York Central | 1 |
OTTX
| TTX Company | 7 |
PRR
| Pennsylvania Railroad | 2 |
PTDX
| ABB Power T and D Company Incorporated | 2 |
PTTX
| TTX Company | 4 |
QTTX
| TTX Company | 8 |
QUAX
| Redstreak, LLC | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TTHX
| TTX Company - Flat Cars | 4 |
TTXX
| TTX Company | 3 |
TVRM
| Tennessee Valley | 1 |
TZPR
| Tazewell & Peoria Railroad | 1 |
USAX
| United States Army | 1 |
WC
| Wisconsin Central | 1 |
WE
| Wheeling & Lake Erie | 1 |
WMX
| WMX | 1 |
XTTX
| TTX Company | 2 |