ATSF
| Atchison Topeka & Santa Fe | 1 |
ATTX
| TTX Company - Container Flats | 1 |
BNSF
| BNSF Railway | 1 |
BTCX
| Browner Turnout Company | 1 |
CCRX
| Cape Cod Railroad | 1 |
CIGX
| THE CIT GROUP/CAPITAL FINANCE, INC. | 1 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 9 |
CW
| Colorado and Wyoming | 6 |
DODX
| Department Of Defense | 57 |
FEC
| Florida East Coast | 42 |
GIMX
| General American Marks Company | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
HTTX
| TTX Company | 14 |
ITTX
| TTX Company | 22 |
JTTX
| TTX Company | 1 |
KCS
| Kansas City Southern | 2 |
KR
| KR | 1 |
KRL
| Kasgro Rail Lines | 13 |
LMIC
| Lake Michigan & Indiana Railroad | 2 |
MP
| Missouri Pacific | 3 |
MSRC
| Kansas City Southern | 1 |
MTTX
| TTX Company | 3 |
NS
| Norfolk Southern | 3 |
NYC
| New York Central | 4 |
OTTX
| TTX Company | 4 |
PTDX
| ABB Power T and D Company Incorporated | 1 |
PTTX
| TTX Company | 10 |
QTTX
| TTX Company | 4 |
SOU
| Southern | 2 |
SPSX
| Progress Rail Services Corp | 3 |
TBCX
| Boeing Company | 4 |
TTDX
| TTX Company - DOD Service Flats | 3 |
TTHX
| TTX Company - Flat Cars | 12 |
TTJX
| TTX Company-Bulkhead Flats | 1 |
TTX
| TTX Company | 4 |
TTXX
| TTX Company | 1 |
UP
| Union Pacific Railroad Company | 9 |
XTTX
| TTX Company | 3 |