AGR
| Alabama and Gulf Coast | 6 |
AOK
| Arkansas-Oklahoma Railroad | 6 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 10 |
BAYL
| Bay Line, LLC | 1 |
BCOL
| Canadian National Railways | 5 |
BISX
| Brandenburg Industrial Service Co | 3 |
BKTY
| Union Pacific Railroad Company | 20 |
BLHX
| SMBC RAIL SERVICES LLC | 1 |
BM
| Boston & Maine | 1 |
BNSF
| BNSF Railway | 1 |
CA
| Chesapeake & Albemarle | 1 |
CAGY
| Columbus & Greenville Railway | 1 |
CHTT
| Chicago Heights Terminal Transfer | 2 |
CN
| Canadian National Railways | 9 |
CNA
| Canadian National Railways | 8 |
CNIS
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 2 |
CO
| Chesapeake & Ohio | 1 |
COE
| Colorado & Eastern | 1 |
COER
| Crab Orchard & Egyptian | 5 |
CP
| Canadian Pacific Railway | 11 |
CPAA
| Canadian Pacific Railway | 2 |
CR
| Conrail | 3 |
CRLE
| Coe Rail Incorporated | 6 |
CSX
| CSX Railroad | 49 |
CV
| Central Vermont | 2 |
DWC
| Canadian National Railways | 9 |
EEC
| East Erie Commercial Railroad | 7 |
FBOX
| TTX Company | 3 |
FLOX
| CIT Group/Capital Finance, Inc | 1 |
FSRR
| FerroSur | 4 |
GACX
| General American Marks Company | 1 |
GMRC
| Green Mountain RR | 6 |
GNWR
| Genesee and Wyoming Railroad Company | 3 |
GTRA
| Golden Triangle Railroad | 12 |
GTW
| Grand Trunk Western | 18 |
HESR
| Huron and Eastern | 2 |
HPJX
| Helm-Pacific Leasing | 1 |
HS
| H and S Railroad Company | 13 |
IANR
| Iowa Northern Ry | 2 |
IATR
| Iowa Traction Railroad Company | 4 |
IBT
| International Bridge and Terminal Company | 5 |
IC
| Illinois Central | 5 |
ICG
| Illinois Central Gulf | 2 |
KCS
| Kansas City Southern | 16 |
LBR
| Lowville and Beaver River Railroad Compa | 3 |
LRS
| Laurinburg and Southern | 7 |
LW
| Louisville and Wadley Railway Company | 6 |
MB
| Meridian & Bigbee | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 2 |
MEC
| Maine Central | 3 |
MP
| Missouri Pacific | 5 |
MQT
| Marquette Rail | 7 |
MRL
| Montana Rail Link | 1 |
MSDR
| Knoxville & Holston River Railroad | 1 |
MWCX
| Midwest Railcar Corporation | 1 |
NADX
| General Electric Rail Services | 3 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 6 |
NOKL
| Northwestern Oklahoma | 8 |
NS
| Norfolk Southern | 31 |
NW
| Norfolk & Western | 1 |
NYC
| New York Central | 17 |
OAR
| Old Augusta Railroad | 1 |
PAL
| Paducah & Louisville | 1 |
QC
| Quebec Central | 1 |
RBOX
| Railbox Company | 14 |
RMGX
| Andersons - Railgroup | 1 |
SMW
| St Marys Railway West LLC | 5 |
SNC
| Saratoga & North Creek Railway | 1 |
SOU
| Southern | 52 |
SP
| Southern Pacific | 5 |
SRY
| Southern Railway of British Columbia Lim | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TASD
| Terminal Alabama State Docks | 2 |
TBOX
| TTX Company | 2 |
TOBX
| TTX Company - Box Cars | 2 |
TOE
| Texas Oklahoma and Eastern RR Company | 2 |
TOFX
| TTX Company - Box Cars | 3 |
TR
| Tomahawk Railway L.P. | 5 |
UP
| Union Pacific Railroad Company | 1 |
WC
| Wisconsin Central | 14 |
WCOR
| Wellsboro and Corning Railroad Company | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 2 |
WRWK
| Providence & Worchester Railroad | 8 |
WSOR
| Wisconsin & Southern | 1 |
YKR
| York Rail | 2 |
YVRR
| Yadkin Valley | 1 |