ABOX
| TTX Company | 25 |
AERC
| Albany and Eastern Railroad Company | 1 |
AGR
| Alabama and Gulf Coast | 16 |
ALM
| Arkansas Louisiana and Mississippi Railr | 30 |
ALY
| Allegheny and Eastern Railroad Incorpora | 3 |
AN
| Apalachicola Northern | 3 |
ANR
| Angelina and Neches River Railroad | 3 |
AOK
| Arkansas-Oklahoma Railroad | 27 |
ASAB
| Bay Line Railroad LLC | 1 |
ATSF
| Atchison Topeka & Santa Fe | 23 |
ATW
| Atlantic and Western | 25 |
BAEX
| Andersons | 8 |
BAR
| Bangor & Aroostook | 7 |
BCOL
| Canadian National Railways | 25 |
BKTY
| Union Pacific Railroad Company | 23 |
BM
| Boston & Maine | 6 |
BN
| Burlington Northern | 8 |
BNSF
| BNSF Railway | 97 |
BO
| Baltimore & Ohio | 1 |
BPRR
| Buffalo and Pittsburgh | 3 |
CCR
| Corinth & Counce | 1 |
CEFX
| CIT Group/Capital Finance, Inc | 2 |
CFWR
| Caney Fork and Western Railroad | 1 |
CHTS
| Penn Eastern Rail Lines Incorporated | 5 |
CIRR
| Chattahoochee Industrial Railroad | 6 |
CLC
| Columbia and Cowlitz Railway Company | 2 |
CMHX
| CarMath Incorporated | 6 |
CN
| Canadian National Railways | 53 |
CNA
| Canadian National Railways | 55 |
CNIS
| Canadian National Railways | 25 |
CNW
| Chicago & Northwestern | 9 |
CO
| Chesapeake & Ohio | 1 |
COER
| Crab Orchard & Egyptian | 13 |
CP
| Canadian Pacific Railway | 45 |
CPAA
| Canadian Pacific Railway | 12 |
CR
| Conrail | 41 |
CRLE
| Coe Rail Incorporated | 18 |
CRYX
| Cryo-Trans Incorporated | 1 |
CSX
| CSX Railroad | 187 |
CUOH
| Columbus and Ohio River Railroad Company | 8 |
CV
| Central Vermont | 1 |
CVC
| Canadian National Railways | 5 |
DH
| Delaware & Hudson | 1 |
DJTX
| Joseph Transportation Incorporated | 1 |
DL
| Delaware-Lackawanna Railroad Company | 2 |
DME
| Dakota, Minnesota and Eastern | 4 |
DMHX
| Davenport Mammoet LLC | 1 |
DMM
| Dansville and Mount Morris Railroad Comp | 4 |
DRGW
| Denver & Rio Grande Western | 6 |
DWC
| Canadian National Railways | 24 |
EEC
| East Erie Commercial Railroad | 54 |
FBOX
| TTX Company | 35 |
FCCM
| Compania de Ferrocarriles Chiapas Mayab | 3 |
FCRD
| First Coast Railway | 1 |
FGLK
| Finger Lakes Railway | 11 |
FP
| Fordyce & Princeton Railroad Company | 4 |
FRR
| Falls Road Railroad Company Incorporated | 1 |
FSRR
| FerroSur | 5 |
FXE
| Ferromex | 11 |
GACX
| General American Marks Company | 4 |
GBRX
| Greenbrier Leasing Corporation | 1 |
GFRR
| Georgia and Florida Railnet | 1 |
GMRC
| Green Mountain RR | 22 |
GNRR
| Georgia Northeastern | 3 |
GNWR
| Genesee and Wyoming Railroad Company | 18 |
GTRA
| Golden Triangle Railroad | 4 |
GTW
| Grand Trunk Western | 29 |
GVSR
| Galveston Railroad L.P. | 3 |
HCSX
| Helm Chesapeake LLP | 1 |
HLMX
| Helm Financial Corporation | 4 |
HPJX
| Helm-Pacific Leasing | 13 |
HS
| H and S Railroad Company | 52 |
IATR
| Iowa Traction Railroad Company | 10 |
IBT
| International Bridge and Terminal Company | 18 |
IC
| Illinois Central | 11 |
ICG
| Illinois Central Gulf | 6 |
KCS
| Kansas City Southern | 55 |
LBR
| Lowville and Beaver River Railroad Compa | 13 |
LC
| Lancaster & Chester | 2 |
LRS
| Laurinburg and Southern | 20 |
LRWN
| Little Rock & Western | 1 |
LSRC
| Lake State Railway Company | 2 |
LV
| Lehigh Valley | 1 |
LW
| Louisville and Wadley Railway Company | 18 |
LXOH
| Knoxville & Holston River Railroad | 1 |
MB
| Meridian & Bigbee | 4 |
MCSA
| Moscow Camden and San Augustine Railroad | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 15 |
MEC
| Maine Central | 24 |
MET
| Modesto and Empire Traction Company | 4 |
MILW
| Milwaukee Road | 1 |
MMA
| Montreal, Maine & Atlantic | 23 |
MP
| Missouri Pacific | 21 |
MPA
| Maryland and Pennsylvania Railroad | 1 |
MPCX
| Michels Corporation | 1 |
MQT
| Marquette Rail | 1 |
MRL
| Montana Rail Link | 2 |
MSDR
| Knoxville & Holston River Railroad | 1 |
MWCX
| Midwest Railcar Corporation | 15 |
NADX
| General Electric Rail Services | 2 |
NHCR
| New Hampshire Central Railroad | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 4 |
NOKL
| Northwestern Oklahoma | 21 |
NOPB
| New Orleans Public Belt Railroad | 1 |
NRLX
| CIT Group/Capital Finance, Inc | 5 |
NS
| Norfolk Southern | 269 |
NSHR
| North Shore | 3 |
NW
| Norfolk & Western | 19 |
NWR
| Nashville & Western Railroad Corp. | 4 |
NYC
| New York Central | 15 |
ONT
| Ontario Northland Railway | 4 |
PAL
| Paducah & Louisville | 1 |
PDRR
| Pee Dee River RR | 1 |
PGR
| Progressive Rail, Inc | 2 |
PRL
| Penn Eastern Rail Lines Incorporated | 9 |
PRR
| Pennsylvania Railroad | 2 |
QC
| Quebec Central | 5 |
QGRY
| Quebec Gatineau Railway Incorporated | 15 |
RBOX
| Railbox Company | 124 |
RDG
| Reading Railroad | 2 |
RPMX
| RPMG INC | 1 |
SGLR
| Seminole Gulf | 1 |
SIRX
| Southern Illinois Railcar Company | 2 |
SKRX
| Schuylkill Railcar L.P. | 2 |
SLC
| San Luis Central Railroad Company | 6 |
SLGG
| Progress Rail Services Corporation | 6 |
SLR
| St Lawrence & Atlantic | 4 |
SLSF
| Saint Louis-San Francisco | 1 |
SNC
| Saratoga & North Creek Railway | 6 |
SOO
| Soo Line | 3 |
SOU
| Southern | 231 |
SP
| Southern Pacific | 67 |
SRN
| Sabine River & Northern | 9 |
SRY
| Southern Railway of British Columbia Lim | 8 |
SSW
| St Louis Southwestern (Cotton Belt) | 29 |
STE
| Stockton Terminal and Eastern RR | 3 |
SVRR
| Shamokin Valley Railroad Company | 3 |
TASD
| Terminal Alabama State Docks | 1 |
TBOX
| TTX Company | 38 |
TCWR
| Twin Cities and Western | 3 |
TFM
| Kansas City Southern De Mexico | 1 |
TOBX
| TTX Company - Box Cars | 1 |
TOE
| Texas Oklahoma and Eastern RR Company | 12 |
TOFX
| TTX Company - Box Cars | 3 |
TR
| Tomahawk Railway L.P. | 24 |
UCRY
| Utah Central | 2 |
UP
| Union Pacific Railroad Company | 26 |
USLX
| General Electric Rail Services | 1 |
USN
| United States Navy | 6 |
VCY
| Galveston Railroad, L.P. | 1 |
VR
| Valdosta Railway | 11 |
WC
| Wisconsin Central | 50 |
WCCL
| Wisconsin Central | 6 |
WCOR
| Wellsboro and Corning Railroad Company | 9 |
WGCR
| Wiregrass Central Railroad. Incorporated | 2 |
WIIX
| Williamette Industries Incorporated | 21 |
WLO
| Waterloo Railway Company (Illinois Central) | 3 |
WP
| Western Pacific | 2 |
WRWK
| Providence & Worchester Railroad | 16 |
WSOR
| Wisconsin & Southern | 4 |
WTRM
| Warren and Trumbull Railroad Company | 2 |
YARR
| Youngstown and Austintown Railroad | 13 |
YB
| Youngstown Belt Railroad Company | 5 |
YKR
| York Rail | 5 |