AGR
| Alabama and Gulf Coast | 42 |
ALM
| Arkansas Louisiana and Mississippi Railr | 8 |
ATW
| Atlantic and Western | 3 |
BAEX
| Andersons | 1 |
BAYL
| Bay Line, LLC | 6 |
BKTY
| Union Pacific Railroad Company | 78 |
BM
| Boston & Maine | 8 |
CIRR
| Chattahoochee Industrial Railroad | 5 |
CNW
| Chicago & Northwestern | 1 |
COER
| Crab Orchard & Egyptian | 1 |
CP
| Canadian Pacific Railway | 1 |
CSX
| CSX Railroad | 34 |
DMM
| Dansville and Mount Morris Railroad Comp | 1 |
EEC
| East Erie Commercial Railroad | 31 |
FCRD
| First Coast Railway | 7 |
FGLK
| Finger Lakes Railway | 17 |
FRR
| Falls Road Railroad Company Incorporated | 1 |
GMRC
| Green Mountain RR | 26 |
GTRA
| Golden Triangle Railroad | 4 |
HLMX
| Helm Financial Corporation | 1 |
HS
| H and S Railroad Company | 50 |
ITFX
| INFINITY TRANSPORTATION III LLC | 1 |
KCS
| Kansas City Southern | 7 |
LBR
| Lowville and Beaver River Railroad Compa | 3 |
LRS
| Laurinburg and Southern | 18 |
MEC
| Maine Central | 73 |
MQT
| Marquette Rail | 1 |
MRL
| Montana Rail Link | 2 |
MSDR
| Knoxville & Holston River Railroad | 2 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 4 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 6 |
PAL
| Paducah & Louisville | 4 |
PDRR
| Pee Dee River RR | 2 |
SGLR
| Seminole Gulf | 8 |
SIRX
| Southern Illinois Railcar Company | 7 |
SMW
| St Marys Railway West LLC | 10 |
SNC
| Saratoga & North Creek Railway | 5 |
SOU
| Southern | 9 |
SRN
| Sabine River & Northern | 13 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
WC
| Wisconsin Central | 3 |
WCOR
| Wellsboro and Corning Railroad Company | 1 |
WRWK
| Providence & Worchester Railroad | 3 |