AF
| Alabama and Florida Railway Company | 1 |
AOK
| Arkansas-Oklahoma Railroad | 28 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
B
| B | 11 |
BN
| Burlington Northern | 3 |
BNSF
| BNSF Railway | 62 |
C
| C | 3 |
CEFX
| CIT Group/Capital Finance, Inc | 2 |
CEMX
| Cemex Mexico SA de CV | 1 |
CN
| Canadian National Railways | 19 |
CNA
| Canadian National Railways | 11 |
CNW
| Chicago & Northwestern | 1 |
COER
| Crab Orchard & Egyptian | 2 |
CP
| Canadian Pacific Railway | 4 |
CPAA
| Canadian Pacific Railway | 1 |
CPR
| Canadian Pacific Railway | 11 |
CR
| Conrail | 2 |
CSX
| CSX Railroad | 2 |
CTTX
| TTX Company - Autoracks | 1 |
ETTX
| TTX Company - Autoracks | 1 |
FXE
| Ferromex | 55 |
G
| G | 1 |
GT
| Grand Trunk Railway | 3 |
GTW
| Grand Trunk Western | 10 |
KCS
| Kansas City Southern | 64 |
MKT
| Missouri-Kansas-Texas | 3 |
MP
| Missouri Pacific | 14 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 15 |
NOKL
| Northwestern Oklahoma | 6 |
NS
| Norfolk Southern | 56 |
SOO
| Soo Line | 3 |
SP
| Southern Pacific | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TINX
| Trinity Railcar | 14 |
TNM
| Union Pacific Railroad Company | 3 |
TR
| Tomahawk Railway L.P. | 5 |
TTGX
| TTX Company-Autoracks | 7 |
TTTX
| TTX Company | 1 |
UCRY
| Utah Central | 4 |
UP
| Union Pacific Railroad Company | 22 |
UPL
| UPL | 1 |
WC
| Wisconsin Central | 1 |
WP
| Western Pacific | 1 |
WRWK
| Providence & Worchester Railroad | 4 |