AOK
| Arkansas-Oklahoma Railroad | 14 |
AOKX
| Greenbrier Management Services, LLC | 4 |
AWXX
| East Carbon development Company | 2 |
BNG
| Blackwell Northern Gateway Railroad Comp | 1 |
BNSF
| BNSF Railway | 57 |
CIGX
| THE CIT GROUP/CAPITAL FINANCE, INC. | 3 |
CP
| Canadian Pacific Railway | 5 |
CR
| Conrail | 3 |
CW
| Colorado and Wyoming | 2 |
CWM
| CWM | 7 |
DOD
| DOD | 2 |
DODX
| Department Of Defense | 123 |
DOX
| DOX | 1 |
GBRX
| Greenbrier Leasing Corporation | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
HKRX
| HKRX | 5 |
HTTX
| TTX Company | 3 |
ITTX
| TTX Company | 8 |
KRL
| Kasgro Rail Lines | 4 |
LMIC
| Lake Michigan & Indiana Railroad | 2 |
LTTX
| TTX Company | 4 |
MKT
| Missouri-Kansas-Texas | 4 |
MP
| Missouri Pacific | 10 |
MTTX
| TTX Company | 2 |
NKP
| Nickel Plate | 3 |
PEYX
| Transportation Technology Services Inc | 1 |
PTTX
| TTX Company | 16 |
QTTX
| TTX Company | 3 |
QUAX
| Redstreak, LLC | 2 |
RBBX
| Ringling Bros. and Barnum and Bailey | 11 |
SITX
| Sherritt International Corporation | 3 |
SJTX
| Stella Jones, Inc | 1 |
SOO
| Soo Line | 5 |
SP
| Southern Pacific | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TBCX
| Boeing Company | 9 |
TOEX
| TOEX | 2 |
TPDX
| TPDX | 144 |
TTHX
| TTX Company - Flat Cars | 1 |
TTIX
| TTX | 1 |
TTJX
| TTX Company-Bulkhead Flats | 2 |
TTVX
| TTX Company | 1 |
TTWX
| TTX Company | 1 |
TTYX
| TTX Company | 1 |
TTYZ
| TTYZ | 1 |
UP
| Union Pacific Railroad Company | 12 |
VSR
| Valley & Siletz RR | 1 |
WAB
| Wabash | 4 |
WC
| Wisconsin Central | 1 |
XTTX
| TTX Company | 13 |