ABOX
| TTX Company | 17 |
AERC
| Albany and Eastern Railroad Company | 1 |
AGR
| Alabama and Gulf Coast | 15 |
AKMD
| Arkansas Midland Railroad Company | 1 |
ALM
| Arkansas Louisiana and Mississippi Railr | 10 |
ALY
| Allegheny and Eastern Railroad Incorpora | 4 |
AN
| Apalachicola Northern | 1 |
ANR
| Angelina and Neches River Railroad | 1 |
AOK
| Arkansas-Oklahoma Railroad | 224 |
ATSF
| Atchison Topeka & Santa Fe | 578 |
ATW
| Atlantic and Western | 90 |
BAYL
| Bay Line, LLC | 1 |
BCOL
| Canadian National Railways | 7 |
BKTY
| Union Pacific Railroad Company | 42 |
BN
| Burlington Northern | 43 |
BNSF
| BNSF Railway | 2359 |
CCR
| Corinth & Counce | 1 |
CEMX
| Cemex Mexico SA de CV | 2 |
CGX
| CGX | 1 |
CHTT
| Chicago Heights Terminal Transfer | 2 |
CIBX
| CIT Group/Capital Finance, Inc | 11 |
CIC
| Cedar Rapids & Iowa City | 16 |
CN
| Canadian National Railways | 37 |
CNA
| Canadian National Railways | 33 |
CNIS
| Canadian National Railways | 6 |
CNW
| Chicago & Northwestern | 9 |
COER
| Crab Orchard & Egyptian | 47 |
COP
| City of Prineville Railway | 1 |
CP
| Canadian Pacific Railway | 93 |
CPAA
| Canadian Pacific Railway | 3 |
CRLE
| Coe Rail Incorporated | 32 |
CS
| Colorado & Southern | 1 |
CSX
| CSX Railroad | 83 |
CV
| Central Vermont | 1 |
CVC
| Canadian National Railways | 1 |
DMM
| Dansville and Mount Morris Railroad Comp | 1 |
DRGW
| Denver & Rio Grande Western | 12 |
DWC
| Canadian National Railways | 49 |
EEC
| East Erie Commercial Railroad | 67 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
FBOX
| TTX Company | 193 |
FCRD
| First Coast Railway | 4 |
FP
| Fordyce & Princeton Railroad Company | 4 |
FSRR
| FerroSur | 1 |
FURX
| First Union Rail | 1 |
FXE
| Ferromex | 3 |
GACX
| General American Marks Company | 2 |
GMRC
| Green Mountain RR | 3 |
GMSR
| Kansas City Southern | 1 |
GNRR
| Georgia Northeastern | 2 |
GNWR
| Genesee and Wyoming Railroad Company | 5 |
GTW
| Grand Trunk Western | 16 |
GVSR
| Galveston Railroad L.P. | 3 |
GWRX
| GWRX | 1 |
HCGX
| COMPASS MINERALS INTERNATIONAL INC | 6 |
HLMX
| Helm Financial Corporation | 15 |
HPIX
| Basell USA, Inc | 1 |
HPJX
| Helm-Pacific Leasing | 5 |
HS
| H and S Railroad Company | 38 |
IANR
| Iowa Northern Ry | 3 |
IATR
| Iowa Traction Railroad Company | 6 |
IBT
| International Bridge and Terminal Company | 48 |
IC
| Illinois Central | 5 |
ITLX
| General Electric Rail Services | 2 |
KCS
| Kansas City Southern | 251 |
KCSM
| Kansas City Southern De Mexico | 2 |
KLRX
| KOCH RAIL LLC | 1 |
KYLE
| Kyle Railroad | 2 |
LIMX
| CHEMICAL LIME CO. | 1 |
LRS
| Laurinburg and Southern | 50 |
LRWN
| Little Rock & Western | 1 |
LSRC
| Lake State Railway Company | 1 |
LW
| Louisville and Wadley Railway Company | 29 |
MDR
| Kansas City Southern | 5 |
MDW
| Minnesota Dakota and Western Railway Com | 12 |
MEC
| Maine Central | 4 |
MILW
| Milwaukee Road | 1 |
MISX
| Milwaukee Solvents and Chemicals Corporation | 4 |
MMA
| Montreal, Maine & Atlantic | 1 |
MNNR
| Minnesota Commercial | 4 |
MP
| Missouri Pacific | 33 |
MQT
| Marquette Rail | 8 |
MR
| McCloud Railway Company | 21 |
MRL
| Montana Rail Link | 44 |
MRS
| Manufacturers Railway | 3 |
MSDR
| Knoxville & Holston River Railroad | 5 |
MSRC
| Kansas City Southern | 2 |
MTNR
| Mississippi Tennessee Railroad LLC | 21 |
MWCX
| Midwest Railcar Corporation | 38 |
NADX
| General Electric Rail Services | 59 |
NDYX
| First Union Rail | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 29 |
NOKL
| Northwestern Oklahoma | 119 |
NRLX
| CIT Group/Capital Finance, Inc | 6 |
NS
| Norfolk Southern | 462 |
NYC
| New York Central | 1 |
OAR
| Old Augusta Railroad | 3 |
PGR
| Progressive Rail, Inc | 1 |
RBOX
| Railbox Company | 137 |
RGS
| Rio Grande Southern | 1 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 23 |
RRLX
| Rail Logistics, LC | 2 |
SLC
| San Luis Central Railroad Company | 1 |
SLGG
| Progress Rail Services Corporation | 1 |
SLR
| St Lawrence & Atlantic | 1 |
SMW
| St Marys Railway West LLC | 20 |
SNC
| Saratoga & North Creek Railway | 2 |
SOU
| Southern | 46 |
SP
| Southern Pacific | 47 |
SRN
| Sabine River & Northern | 96 |
SRY
| Southern Railway of British Columbia Lim | 106 |
SSW
| St Louis Southwestern (Cotton Belt) | 19 |
TBOX
| TTX Company | 788 |
TCWR
| Twin Cities and Western | 3 |
TFM
| Kansas City Southern De Mexico | 5 |
TILX
| Trinity Industries Leasing Company | 1 |
TIMX
| Trinity Industries Leasing Company | 13 |
TKEN
| Tennken Railroad Company Incorporated | 1 |
TOBX
| TTX Company - Box Cars | 3 |
TOE
| Texas Oklahoma and Eastern RR Company | 55 |
TOFX
| TTX Company - Box Cars | 5 |
TR
| Tomahawk Railway L.P. | 162 |
TTX
| TTX Company | 1 |
UCRY
| Utah Central | 5 |
UP
| Union Pacific Railroad Company | 35 |
VR
| Valdosta Railway | 2 |
WC
| Wisconsin Central | 45 |
WCTR
| WCTU Company White City Terminal Railway | 2 |
WLO
| Waterloo Railway Company (Illinois Central) | 1 |
WRWK
| Providence & Worchester Railroad | 23 |
YARR
| Youngstown and Austintown Railroad | 2 |
YKR
| York Rail | 4 |