ABOX
| TTX Company | 16 |
AGR
| Alabama and Gulf Coast | 1 |
ALM
| Arkansas Louisiana and Mississippi Railr | 1 |
ALY
| Allegheny and Eastern Railroad Incorpora | 5 |
ANR
| Angelina and Neches River Railroad | 1 |
AOK
| Arkansas-Oklahoma Railroad | 8 |
ATSF
| Atchison Topeka & Santa Fe | 6 |
ATW
| Atlantic and Western | 6 |
BAEX
| Andersons | 5 |
BAR
| Bangor & Aroostook | 1 |
BCOL
| Canadian National Railways | 6 |
BM
| Boston & Maine | 1 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 28 |
BPRR
| Buffalo and Pittsburgh | 1 |
BR
| Buffalo and Pittsburgh | 1 |
CHTT
| Chicago Heights Terminal Transfer | 1 |
CMHX
| CarMath Incorporated | 7 |
CN
| Canadian National Railways | 46 |
CNA
| Canadian National Railways | 30 |
CNIS
| Canadian National Railways | 5 |
CNW
| Chicago & Northwestern | 2 |
CP
| Canadian Pacific Railway | 1 |
CPAA
| Canadian Pacific Railway | 1 |
CR
| Conrail | 9 |
CRLE
| Coe Rail Incorporated | 18 |
CSX
| CSX Railroad | 58 |
CTN
| Canton Railroad Company | 5 |
CUOH
| Columbus and Ohio River Railroad Company | 1 |
CV
| Central Vermont | 1 |
CVC
| Canadian National Railways | 13 |
DME
| Dakota, Minnesota and Eastern | 2 |
DRGW
| Denver & Rio Grande Western | 1 |
DWC
| Canadian National Railways | 14 |
EEC
| East Erie Commercial Railroad | 10 |
FBOX
| TTX Company | 16 |
FGLK
| Finger Lakes Railway | 6 |
FP
| Fordyce & Princeton Railroad Company | 1 |
GMRC
| Green Mountain RR | 9 |
GMSR
| Kansas City Southern | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 5 |
GTW
| Grand Trunk Western | 4 |
GVSR
| Galveston Railroad L.P. | 10 |
HCGX
| COMPASS MINERALS INTERNATIONAL INC | 3 |
HPJX
| Helm-Pacific Leasing | 4 |
HS
| H and S Railroad Company | 13 |
IBT
| International Bridge and Terminal Company | 8 |
IC
| Illinois Central | 5 |
KCS
| Kansas City Southern | 6 |
LRWN
| Little Rock & Western | 1 |
LVRC
| Lamoille Valley | 2 |
LW
| Louisville and Wadley Railway Company | 7 |
MCSA
| Moscow Camden and San Augustine Railroad | 4 |
MDW
| Minnesota Dakota and Western Railway Com | 2 |
MEC
| Maine Central | 9 |
MP
| Missouri Pacific | 12 |
MQT
| Marquette Rail | 1 |
MR
| McCloud Railway Company | 2 |
MRL
| Montana Rail Link | 1 |
MSDR
| Knoxville & Holston River Railroad | 1 |
MSRC
| Kansas City Southern | 2 |
MWCX
| Midwest Railcar Corporation | 4 |
NADX
| General Electric Rail Services | 4 |
NAR
| Northern Alberta Railways | 1 |
NOKL
| Northwestern Oklahoma | 3 |
NRLX
| CIT Group/Capital Finance, Inc | 3 |
NS
| Norfolk Southern | 46 |
NW
| Norfolk & Western | 4 |
NYC
| New York Central | 1 |
OAR
| Old Augusta Railroad | 3 |
OC
| OC | 1 |
ONT
| Ontario Northland Railway | 5 |
PSMX
| Esco Corporation | 1 |
QC
| Quebec Central | 1 |
QGRY
| Quebec Gatineau Railway Incorporated | 1 |
RBOX
| Railbox Company | 62 |
SLC
| San Luis Central Railroad Company | 4 |
SLGG
| Progress Rail Services Corporation | 2 |
SLR
| St Lawrence & Atlantic | 5 |
SOU
| Southern | 31 |
SP
| Southern Pacific | 15 |
SPSX
| Progress Rail Services Corp | 1 |
SRN
| Sabine River & Northern | 3 |
SRY
| Southern Railway of British Columbia Lim | 4 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
STMA
| St. Maries River Railroad Company | 2 |
TBOX
| TTX Company | 18 |
TKEN
| Tennken Railroad Company Incorporated | 1 |
TOE
| Texas Oklahoma and Eastern RR Company | 1 |
TR
| Tomahawk Railway L.P. | 5 |
UP
| Union Pacific Railroad Company | 11 |
VCY
| Galveston Railroad, L.P. | 1 |
WC
| Wisconsin Central | 12 |
WCCL
| Wisconsin Central | 1 |
WCOR
| Wellsboro and Corning Railroad Company | 2 |
WTRM
| Warren and Trumbull Railroad Company | 6 |
YARR
| Youngstown and Austintown Railroad | 1 |
YKR
| York Rail | 7 |