ATSF
| Atchison Topeka & Santa Fe | 1 |
ATTX
| TTX Company - Container Flats | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 5 |
BTCX
| Browner Turnout Company | 1 |
BTFX
| BTFX | 4 |
BTTX
| TTX Company - Autoracks | 1 |
BVRY
| Brandywine Valley Railroad Company | 1 |
CCKX
| CCKX Incorporated | 1 |
CCRX
| Cape Cod Railroad | 1 |
CITX
| CIT Group/Capital Finance, Inc | 2 |
CNW
| Chicago & Northwestern | 4 |
CP
| Canadian Pacific Railway | 6 |
DODX
| Department Of Defense | 60 |
DRGW
| Denver & Rio Grande Western | 2 |
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 | 3 |
HTTX
| TTX Company | 5 |
ITTX
| TTX Company | 16 |
JDIX
| Jim Dobbas Incorporated | 1 |
JOBX
| Tealinc Limited | 1 |
JTTX
| TTX Company | 4 |
KCS
| Kansas City Southern | 15 |
KRL
| Kasgro Rail Lines | 25 |
LNAL
| Louisville New Albany and Corydon Railroad | 1 |
LTTX
| TTX Company | 1 |
MP
| Missouri Pacific | 31 |
MSRC
| Kansas City Southern | 1 |
NS
| Norfolk Southern | 1 |
OTTX
| TTX Company | 8 |
PEYX
| Transportation Technology Services Inc | 17 |
PTTX
| TTX Company | 11 |
QTTX
| TTX Company | 28 |
RAIX
| Union Carbide Corporation | 6 |
RTIX
| RTI - Railroad Services | 1 |
RTTX
| TTX Company | 2 |
SOU
| Southern | 2 |
SP
| Southern Pacific | 1 |
SPMW
| Southern Pacific Maintenance of Way | 6 |
SPS
| Spokane Portland & Seattle | 4 |
SPSX
| Progress Rail Services Corp | 13 |
TFM
| Kansas City Southern De Mexico | 13 |
TOEX
| TOEX | 8 |
TPAX
| TPAX | 1 |
TPDX
| TPDX | 29 |
TTHX
| TTX Company - Flat Cars | 1 |
TTX
| TTX Company | 2 |
TTYX
| TTX Company | 4 |
UP
| Union Pacific Railroad Company | 21 |
WECX
| Westinghouse Electric Corporation | 1 |
WP
| Western Pacific | 2 |
XTTX
| TTX Company | 1 |