ATSF
| Atchison Topeka & Santa Fe | 1 |
ATTX
| TTX Company - Container Flats | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 5 |
BTFX
| BROWNER TURNOUT COMPANY | 4 |
BTTX
| TTX Company - Autoracks | 1 |
BVRY
| Brandywine Valley Railroad Company | 1 |
CCRX
| Cape Cod Railroad | 1 |
CITX
| CIT Group/Capital Finance, Inc | 3 |
CN
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 4 |
CP
| Canadian Pacific Railway | 6 |
DODX
| Department Of Defense | 69 |
DRGW
| Denver & Rio Grande Western | 4 |
DSNG
| Durango & Silverton Narrow Gauge Railroa | 2 |
FCCM
| Compania de Ferrocarriles Chiapas Mayab | 1 |
FEC
| Florida East Coast | 1 |
FTTX
| TTX Company | 5 |
GWWR
| Gateway Western | 6 |
HKRX
| HKRX | 1 |
HTTX
| TTX Company | 7 |
IHB
| Indiana Harbor Belt | 2 |
ITTX
| TTX Company | 25 |
JDIX
| Jim Dobbas Incorporated | 1 |
JOBX
| Tealinc Limited | 1 |
JTTX
| TTX Company | 4 |
KCS
| Kansas City Southern | 23 |
KRL
| Kasgro Rail Lines | 25 |
LNAL
| Louisville New Albany and Corydon Railroad | 1 |
LTTX
| TTX Company | 2 |
MBCX
| Chicago Freight Car Leasing Co | 1 |
MP
| Missouri Pacific | 32 |
MSRC
| Kansas City Southern | 1 |
NS
| Norfolk Southern | 2 |
OTTX
| TTX Company | 8 |
PC
| Penn Central | 1 |
PEYX
| Transportation Technology Services Inc | 18 |
PTTX
| TTX Company | 12 |
QTTX
| TTX Company | 34 |
QUAX
| Redstreak, LLC | 1 |
RAIX
| Union Carbide Corporation | 6 |
RTIX
| RTI - Railroad Services | 1 |
RTTX
| TTX Company | 2 |
SOU
| Southern | 1 |
SP
| Southern Pacific | 1 |
SPMW
| Southern Pacific Maintenance of Way | 7 |
SPS
| Spokane Portland & Seattle | 4 |
SPSX
| Progress Rail Services Corp | 14 |
SSWM
| SSWM | 1 |
TFM
| Kansas City Southern De Mexico | 21 |
TOEX
| TOEX | 9 |
TPAX
| TPAX | 3 |
TPDX
| TPDX | 35 |
TTHX
| TTX Company - Flat Cars | 1 |
TTX
| TTX Company | 3 |
TTYX
| TTX Company | 5 |
UP
| Union Pacific Railroad Company | 25 |
WECX
| Westinghouse Electric Corporation | 2 |
WP
| Western Pacific | 3 |
XTTX
| TTX Company | 2 |