CP
| Canadian Pacific Railway | 3 |
CSX
| CSX Railroad | 3 |
CW
| Colorado and Wyoming | 1 |
DODX
| Department Of Defense | 15 |
FURX
| First Union Rail | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GPSX
| Georgia-Pacific Corporation Eastern Wood Products Mfg.Divisi | 2 |
HPAX
| International Paper Company | 1 |
HTTX
| TTX Company | 9 |
IC
| Illinois Central | 1 |
ITTX
| TTX Company | 5 |
JTTX
| TTX Company | 4 |
KCS
| Kansas City Southern | 3 |
KRL
| Kasgro Rail Lines | 8 |
KWUX
| Siemens Power Corporation | 2 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
MP
| Missouri Pacific | 2 |
MTTX
| TTX Company | 1 |
NS
| Norfolk Southern | 7 |
NW
| Norfolk & Western | 3 |
NYC
| New York Central | 2 |
OTTX
| TTX Company | 4 |
PTTX
| TTX Company | 2 |
QTTX
| TTX Company | 3 |
QUAX
| Redstreak, LLC | 4 |
RBBX
| Ringling Bros. and Barnum and Bailey | 3 |
SOU
| Southern | 8 |
TBCX
| Boeing Company | 1 |
TFM
| Kansas City Southern De Mexico | 2 |
TTHX
| TTX Company - Flat Cars | 1 |
TTX
| TTX Company | 1 |
TZPR
| Tazewell & Peoria Railroad | 3 |
UP
| Union Pacific Railroad Company | 9 |
WC
| Wisconsin Central | 1 |
WTTX
| TTX Company | 1 |
XTTX
| TTX Company | 4 |