ALY
| Allegheny and Eastern Railroad Incorpora | 11 |
AOK
| Arkansas-Oklahoma Railroad | 56 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 61 |
BAYL
| Bay Line, LLC | 4 |
BN
| Burlington Northern | 30 |
BNSF
| BNSF Railway | 948 |
CEFX
| CIT Group/Capital Finance, Inc | 9 |
CIRR
| Chattahoochee Industrial Railroad | 10 |
CLC
| Columbia and Cowlitz Railway Company | 12 |
CN
| Canadian National Railways | 72 |
CNA
| Canadian National Railways | 32 |
COER
| Crab Orchard & Egyptian | 7 |
CP
| Canadian Pacific Railway | 3 |
CR
| Conrail | 1 |
CRLE
| Coe Rail Incorporated | 94 |
CUOH
| Columbus and Ohio River Railroad Company | 10 |
FBOX
| TTX Company | 488 |
FGLK
| Finger Lakes Railway | 3 |
GACX
| General American Marks Company | 1 |
GMRC
| Green Mountain RR | 3 |
GTW
| Grand Trunk Western | 93 |
GVSR
| Galveston Railroad L.P. | 3 |
HS
| H and S Railroad Company | 36 |
IANR
| Iowa Northern Ry | 2 |
IATR
| Iowa Traction Railroad Company | 2 |
IBT
| International Bridge and Terminal Company | 441 |
IC
| Illinois Central | 12 |
IFRX
| Infinity Rail LLC | 3 |
KCS
| Kansas City Southern | 70 |
LRS
| Laurinburg and Southern | 15 |
LW
| Louisville and Wadley Railway Company | 38 |
MCSA
| Moscow Camden and San Augustine Railroad | 44 |
MDW
| Minnesota Dakota and Western Railway Com | 100 |
MMA
| Montreal, Maine & Atlantic | 14 |
MP
| Missouri Pacific | 18 |
MQT
| Marquette Rail | 10 |
MRL
| Montana Rail Link | 25 |
NDYX
| First Union Rail | 2 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 16 |
NOKL
| Northwestern Oklahoma | 164 |
NS
| Norfolk Southern | 101 |
NW
| Norfolk & Western | 2 |
NWR
| Nashville & Western Railroad Corp. | 1 |
NYC
| New York Central | 2 |
OAR
| Old Augusta Railroad | 1 |
QC
| Quebec Central | 102 |
QGRY
| Quebec Gatineau Railway Incorporated | 18 |
RVPR
| Riverport R.R., L.L.C. | 11 |
SLR
| St Lawrence & Atlantic | 24 |
SOU
| Southern | 12 |
SP
| Southern Pacific | 70 |
SRN
| Sabine River & Northern | 1 |
SRY
| Southern Railway of British Columbia Lim | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 3 |
TOE
| Texas Oklahoma and Eastern RR Company | 82 |
TOFX
| TTX Company - Box Cars | 20 |
TR
| Tomahawk Railway L.P. | 121 |
UP
| Union Pacific Railroad Company | 17 |
VCY
| Galveston Railroad, L.P. | 16 |
WC
| Wisconsin Central | 24 |
WRWK
| Providence & Worchester Railroad | 24 |
YARR
| Youngstown and Austintown Railroad | 1 |