ABOX
| TTX Company | 11 |
ADN
| Ashley Drew & Northern | 1 |
AGR
| Alabama and Gulf Coast | 11 |
ALM
| Arkansas Louisiana and Mississippi Railr | 8 |
AM
| Arkansas & Missouri | 2 |
ANR
| Angelina and Neches River Railroad | 3 |
AOK
| Arkansas-Oklahoma Railroad | 24 |
ASAB
| Bay Line Railroad LLC | 14 |
ATSF
| Atchison Topeka & Santa Fe | 22 |
ATW
| Atlantic and Western | 25 |
AZER
| Arizona Eastern Railway Company | 18 |
BAEX
| Andersons | 7 |
BAYL
| Bay Line, LLC | 6 |
BCOL
| Canadian National Railways | 5 |
BKTY
| Union Pacific Railroad Company | 42 |
BLHX
| SMBC RAIL SERVICES LLC | 3 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 97 |
CEMX
| Cemex Mexico SA de CV | 3 |
CFWR
| Caney Fork and Western Railroad | 1 |
CHTT
| Chicago Heights Terminal Transfer | 4 |
CIRR
| Chattahoochee Industrial Railroad | 9 |
CMHX
| CarMath Incorporated | 1 |
CN
| Canadian National Railways | 18 |
CNA
| Canadian National Railways | 17 |
CNIS
| Canadian National Railways | 4 |
CNW
| Chicago & Northwestern | 24 |
CO
| Chesapeake & Ohio | 1 |
COER
| Crab Orchard & Egyptian | 10 |
CP
| Canadian Pacific Railway | 6 |
CR
| Conrail | 2 |
CRIX
| Citicorp Railmark, Inc. | 1 |
CRLE
| Coe Rail Incorporated | 3 |
CSX
| CSX Railroad | 91 |
DMM
| Dansville and Mount Morris Railroad Comp | 4 |
DRGW
| Denver & Rio Grande Western | 19 |
DWC
| Canadian National Railways | 18 |
EEC
| East Erie Commercial Railroad | 41 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
FBOX
| TTX Company | 37 |
FCRD
| First Coast Railway | 6 |
FSRR
| FerroSur | 1 |
FURX
| First Union Rail | 3 |
FXE
| Ferromex | 13 |
GACX
| General American Marks Company | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 5 |
GTRA
| Golden Triangle Railroad | 2 |
GTW
| Grand Trunk Western | 8 |
GVSR
| Galveston Railroad L.P. | 3 |
HATX
| Helm Financial Corporation | 1 |
HLMX
| Helm Financial Corporation | 6 |
HPJX
| Helm-Pacific Leasing | 1 |
HS
| H and S Railroad Company | 47 |
IANR
| Iowa Northern Ry | 2 |
IATR
| Iowa Traction Railroad Company | 1 |
IBT
| International Bridge and Terminal Company | 48 |
IC
| Illinois Central | 2 |
ICG
| Illinois Central Gulf | 2 |
IFRX
| Infinity Rail LLC | 1 |
KCS
| Kansas City Southern | 56 |
KCSM
| Kansas City Southern De Mexico | 4 |
KYLE
| Kyle Railroad | 19 |
LRS
| Laurinburg and Southern | 2 |
LRWN
| Little Rock & Western | 2 |
LW
| Louisville and Wadley Railway Company | 16 |
MB
| Meridian & Bigbee | 3 |
MDW
| Minnesota Dakota and Western Railway Com | 9 |
MET
| Modesto and Empire Traction Company | 1 |
MP
| Missouri Pacific | 25 |
MR
| McCloud Railway Company | 3 |
MSDR
| Knoxville & Holston River Railroad | 1 |
MWCX
| Midwest Railcar Corporation | 2 |
NADX
| General Electric Rail Services | 2 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 5 |
NOKL
| Northwestern Oklahoma | 17 |
NP
| Northern Pacific | 1 |
NRLX
| CIT Group/Capital Finance, Inc | 1 |
NS
| Norfolk Southern | 50 |
NYC
| New York Central | 3 |
OAR
| Old Augusta Railroad | 4 |
PGR
| Progressive Rail, Inc | 3 |
PSMX
| Esco Corporation | 6 |
RBOX
| Railbox Company | 86 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 2 |
RVPR
| Riverport R.R., L.L.C. | 1 |
SBD
| Seaboard System | 1 |
SLC
| San Luis Central Railroad Company | 1 |
SLR
| St Lawrence & Atlantic | 1 |
SNC
| Saratoga & North Creek Railway | 1 |
SOU
| Southern | 27 |
SP
| Southern Pacific | 62 |
SRN
| Sabine River & Northern | 13 |
SRY
| Southern Railway of British Columbia Lim | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 35 |
TBOX
| TTX Company | 213 |
TFM
| Kansas City Southern De Mexico | 4 |
TIMX
| Trinity Industries Leasing Company | 8 |
TOBX
| TTX Company - Box Cars | 1 |
TOE
| Texas Oklahoma and Eastern RR Company | 5 |
TOFX
| TTX Company - Box Cars | 1 |
TR
| Tomahawk Railway L.P. | 18 |
TSE
| Texas South-Eastern Railroad Company | 3 |
UCRY
| Utah Central | 1 |
UP
| Union Pacific Railroad Company | 35 |
WC
| Wisconsin Central | 6 |
WCCL
| Wisconsin Central | 3 |
WP
| Western Pacific | 8 |
WRWK
| Providence & Worchester Railroad | 9 |