ABOX
| TTX Company | 11 |
AEX
| Andersons | 2 |
AGR
| Alabama and Gulf Coast | 74 |
ALM
| Arkansas Louisiana and Mississippi Railr | 3 |
ANR
| Angelina and Neches River Railroad | 2 |
AOK
| Arkansas-Oklahoma Railroad | 35 |
ATSF
| Atchison Topeka & Santa Fe | 8 |
ATW
| Atlantic and Western | 34 |
BAEX
| Andersons | 1 |
BAYL
| Bay Line, LLC | 3 |
BCOL
| Canadian National Railways | 1 |
BKTY
| Union Pacific Railroad Company | 19 |
BM
| Boston & Maine | 2 |
BNSF
| BNSF Railway | 7 |
CAGY
| Columbus & Greenville Railway | 1 |
CAIX
| CAI Rail Inc. | 1 |
CAMY
| CAMP CHASE RAILWAY COMPANY, LLC | 2 |
CIBX
| CIT Group/Capital Finance, Inc | 3 |
CIRR
| Chattahoochee Industrial Railroad | 6 |
CN
| Canadian National Railways | 4 |
CNA
| Canadian National Railways | 3 |
CNIS
| Canadian National Railways | 5 |
CNW
| Chicago & Northwestern | 2 |
COER
| Crab Orchard & Egyptian | 38 |
CP
| Canadian Pacific Railway | 5 |
CSX
| CSX Railroad | 149 |
DWC
| Canadian National Railways | 4 |
FBOX
| TTX Company | 16 |
FCRD
| First Coast Railway | 9 |
FGLK
| Finger Lakes Railway | 3 |
GACX
| General American Marks Company | 2 |
GFRR
| Georgia and Florida Railnet | 1 |
GMRC
| Green Mountain RR | 3 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTW
| Grand Trunk Western | 8 |
HKRX
| HKRX | 3 |
HS
| H and S Railroad Company | 3 |
IANR
| Iowa Northern Ry | 2 |
IARX
| IARX | 1 |
IBT
| International Bridge and Terminal Company | 3 |
ITFX
| INFINITY TRANSPORTATION III LLC | 1 |
KCS
| Kansas City Southern | 18 |
KXHR
| Knoxville & Holston River RR | 1 |
LRS
| Laurinburg and Southern | 52 |
LW
| Louisville and Wadley Railway Company | 10 |
MEC
| Maine Central | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 2 |
NOKL
| Northwestern Oklahoma | 1 |
NRI
| Nebkota Railway Incorporated | 2 |
NS
| Norfolk Southern | 40 |
NYC
| New York Central | 1 |
PDRR
| Pee Dee River RR | 1 |
PMRX
| Progress Metal Reclamation Company | 3 |
QC
| Quebec Central | 2 |
RBOX
| Railbox Company | 73 |
SCFX
| SCFX | 4 |
SNC
| Saratoga & North Creek Railway | 7 |
SOU
| Southern | 27 |
SP
| Southern Pacific | 2 |
SRN
| Sabine River & Northern | 1 |
SRY
| Southern Railway of British Columbia Lim | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TBOX
| TTX Company | 126 |
TFM
| Kansas City Southern De Mexico | 1 |
TOFX
| TTX Company - Box Cars | 4 |
TR
| Tomahawk Railway L.P. | 7 |
UCRY
| Utah Central | 9 |
UP
| Union Pacific Railroad Company | 2 |
WC
| Wisconsin Central | 11 |
WCCL
| Wisconsin Central | 1 |
WP
| Western Pacific | 1 |
WRWK
| Providence & Worchester Railroad | 30 |
YKR
| York Rail | 2 |