AOK
| Arkansas-Oklahoma Railroad | 2 |
ATTX
| TTX Company - Container Flats | 1 |
BNSF
| BNSF Railway | 1 |
CR
| Conrail | 1 |
CSS
| Chicago South Shore And South Bend | 1 |
CSX
| CSX Railroad | 4 |
DODX
| Department Of Defense | 7 |
FEC
| Florida East Coast | 15 |
FTSX
| Fairmont Tamper | 1 |
HTTX
| TTX Company | 3 |
IPCX
| International Paper Company | 2 |
ITTX
| TTX Company | 24 |
JTLX
| CIT Group/Capital Finance, Inc | 2 |
KCS
| Kansas City Southern | 10 |
KRL
| Kasgro Rail Lines | 7 |
LMIC
| Lake Michigan & Indiana Railroad | 2 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
MP
| Missouri Pacific | 6 |
MTTX
| TTX Company | 1 |
NJRC
| New Jersey Rail Carrier LLC | 1 |
NOKL
| Northwestern Oklahoma | 7 |
NS
| Norfolk Southern | 2 |
NW
| Norfolk & Western | 3 |
OTTX
| TTX Company | 7 |
PHMX
| P&H Mining Equipment | 1 |
PTTX
| TTX Company | 31 |
QTTX
| TTX Company | 6 |
RBBX
| Ringling Bros. and Barnum and Bailey | 41 |
RTTX
| TTX Company | 2 |
SBD
| Seaboard System | 1 |
SOO
| Soo Line | 1 |
SOU
| Southern | 4 |
SPSX
| Progress Rail Services Corp | 1 |
TBCX
| Boeing Company | 2 |
TTCX
| TTX Company | 1 |
TTDX
| TTX Company - DOD Service Flats | 9 |
TTHX
| TTX Company - Flat Cars | 15 |
TTJX
| TTX Company-Bulkhead Flats | 12 |
TTMX
| TTX Company | 1 |
TTWX
| TTX Company | 1 |
TTXX
| TTX Company | 1 |
UP
| Union Pacific Railroad Company | 26 |
VTTX
| TTX Company | 3 |
XTTX
| TTX Company | 2 |