ABOX
| TTX Company | 1 |
ADN
| Ashley Drew & Northern | 1 |
AGR
| Alabama and Gulf Coast | 19 |
ALAB
| Alabama Railroad | 1 |
ANGX
| Andersons - Railgroup | 1 |
ANR
| Angelina and Neches River Railroad | 12 |
AOK
| Arkansas-Oklahoma Railroad | 2 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 9 |
BAEX
| Andersons | 11 |
BAYL
| Bay Line, LLC | 1 |
BB
| Buckingham Branch | 1 |
BCOL
| Canadian National Railways | 7 |
BKTY
| Union Pacific Railroad Company | 11 |
BM
| Boston & Maine | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 3 |
CIBX
| CIT Group/Capital Finance, Inc | 2 |
CIRR
| Chattahoochee Industrial Railroad | 11 |
CMHX
| CarMath Incorporated | 61 |
CMQ
| CENTRAL MAINE & QUEBEC RAILWAY | 1 |
CN
| Canadian National Railways | 5 |
CNW
| Chicago & Northwestern | 1 |
CO
| Chesapeake & Ohio | 1 |
COER
| Crab Orchard & Egyptian | 1 |
CP
| Canadian Pacific Railway | 1 |
CPAA
| Canadian Pacific Railway | 1 |
CR
| Conrail | 15 |
CSX
| CSX Railroad | 14 |
CUOH
| Columbus and Ohio River Railroad Company | 1 |
CV
| Central Vermont | 1 |
DMIR
| Duluth Missabe & Iron Range | 1 |
DRGW
| Denver & Rio Grande Western | 3 |
DWC
| Canadian National Railways | 2 |
EEC
| East Erie Commercial Railroad | 2 |
ELS
| Escanaba and Lake Superior Railroad Comp | 2 |
FCRD
| First Coast Railway | 4 |
FP
| Fordyce & Princeton Railroad Company | 1 |
FRR
| Falls Road Railroad Company Incorporated | 1 |
FXE
| Ferromex | 25 |
GACX
| General American Marks Company | 4 |
GBRY
| Gettysburg Railway. | 1 |
GNRR
| Georgia Northeastern | 1 |
GTW
| Grand Trunk Western | 6 |
HLMX
| Helm Financial Corporation | 1 |
HPJX
| Helm-Pacific Leasing | 1 |
HS
| H and S Railroad Company | 7 |
IANR
| Iowa Northern Ry | 3 |
IATR
| Iowa Traction Railroad Company | 1 |
IBT
| International Bridge and Terminal Company | 1 |
IC
| Illinois Central | 2 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 5 |
KCSM
| Kansas City Southern De Mexico | 1 |
KXHR
| Knoxville & Holston River RR | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 5 |
LN
| Louisville & Nashville | 1 |
LRS
| Laurinburg and Southern | 9 |
LXOH
| Knoxville & Holston River Railroad | 1 |
MEC
| Maine Central | 6 |
MP
| Missouri Pacific | 5 |
MQT
| Marquette Rail | 1 |
MWCX
| Midwest Railcar Corporation | 8 |
NERR
| Nashville and Eastern | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 6 |
NW
| Norfolk & Western | 1 |
NWR
| Nashville & Western Railroad Corp. | 1 |
NYC
| New York Central | 7 |
PDRR
| Pee Dee River RR | 5 |
RBOX
| Railbox Company | 1 |
RVSC
| Rio Valley Switching Company | 1 |
SCFE
| South Central Florida Express Incorporated | 1 |
SCL
| Seaboard Coast Line | 2 |
SGLR
| Seminole Gulf | 1 |
SIRX
| Southern Illinois Railcar Company | 12 |
SLR
| St Lawrence & Atlantic | 1 |
SMW
| St Marys Railway West LLC | 13 |
SNC
| Saratoga & North Creek Railway | 2 |
SOO
| Soo Line | 1 |
SOU
| Southern | 5 |
SP
| Southern Pacific | 3 |
SRN
| Sabine River & Northern | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 4 |
TBOX
| TTX Company | 8 |
TFM
| Kansas City Southern De Mexico | 13 |
TOFX
| TTX Company - Box Cars | 2 |
UELX
| ADM Transportation Company | 5 |
UP
| Union Pacific Railroad Company | 5 |
WC
| Wisconsin Central | 2 |
WP
| Western Pacific | 8 |
WRWK
| Providence & Worchester Railroad | 11 |