AGR
| Alabama and Gulf Coast | 34 |
ALM
| Arkansas Louisiana and Mississippi Railr | 2 |
AN
| Apalachicola Northern | 1 |
AOK
| Arkansas-Oklahoma Railroad | 2 |
ATW
| Atlantic and Western | 7 |
BAEX
| Andersons | 2 |
BKTY
| Union Pacific Railroad Company | 109 |
BM
| Boston & Maine | 3 |
BNSF
| BNSF Railway | 1 |
CIRR
| Chattahoochee Industrial Railroad | 9 |
CLP
| Clarendon and Pittsford | 1 |
CLSX
| Cargill Incorporated Salt Division | 1 |
CMQ
| CENTRAL MAINE & QUEBEC RAILWAY | 1 |
CNW
| Chicago & Northwestern | 5 |
CSX
| CSX Railroad | 4 |
CV
| Central Vermont | 1 |
EEC
| East Erie Commercial Railroad | 52 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
FCCM
| Compania de Ferrocarriles Chiapas Mayab | 1 |
FGLK
| Finger Lakes Railway | 1 |
FRR
| Falls Road Railroad Company Incorporated | 1 |
GMRC
| Green Mountain RR | 59 |
GTRA
| Golden Triangle Railroad | 2 |
HLMX
| Helm Financial Corporation | 2 |
HS
| H and S Railroad Company | 20 |
KCS
| Kansas City Southern | 21 |
KCSM
| Kansas City Southern De Mexico | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 3 |
LRS
| Laurinburg and Southern | 15 |
LVRC
| Lamoille Valley | 2 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MEC
| Maine Central | 29 |
MMA
| Montreal, Maine & Atlantic | 3 |
MSDR
| Knoxville & Holston River Railroad | 3 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 3 |
NOKL
| Northwestern Oklahoma | 5 |
NS
| Norfolk Southern | 7 |
PDRR
| Pee Dee River RR | 1 |
QC
| Quebec Central | 1 |
SMW
| St Marys Railway West LLC | 2 |
SNC
| Saratoga & North Creek Railway | 4 |
SRN
| Sabine River & Northern | 11 |
VR
| Valdosta Railway | 1 |
WRWK
| Providence & Worchester Railroad | 2 |