BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 1 |
CRLE
| Coe Rail Incorporated | 3 |
CSX
| CSX Railroad | 2 |
CV
| Central Vermont | 1 |
EEC
| East Erie Commercial Railroad | 1 |
FRR
| Falls Road Railroad Company Incorporated | 1 |
FSRR
| FerroSur | 1 |
GMRC
| Green Mountain RR | 2 |
IFRX
| Infinity Rail LLC | 2 |
KCS
| Kansas City Southern | 5 |
LBR
| Lowville and Beaver River Railroad Compa | 9 |
MEC
| Maine Central | 4 |
NS
| Norfolk Southern | 5 |
PSMX
| Esco Corporation | 1 |
SKRX
| Schuylkill Railcar L.P. | 1 |
SNC
| Saratoga & North Creek Railway | 1 |
SOU
| Southern | 8 |
TBOX
| TTX Company | 3 |
WC
| Wisconsin Central | 1 |
WCOR
| Wellsboro and Corning Railroad Company | 3 |
WRWK
| Providence & Worchester Railroad | 1 |
YARR
| Youngstown and Austintown Railroad | 3 |