BAR
| Bangor & Aroostook | 8 |
BCLR
| Bay Colony | 4 |
BM
| Boston & Maine | 3 |
CN
| Canadian National Railways | 1 |
CNA
| Canadian National Railways | 2 |
CNIS
| Canadian National Railways | 1 |
CP
| Canadian Pacific Railway | 2 |
CPAA
| Canadian Pacific Railway | 3 |
CRLE
| Coe Rail Incorporated | 2 |
CSX
| CSX Railroad | 1 |
FBOX
| TTX Company | 1 |
GMRC
| Green Mountain RR | 24 |
GNWR
| Genesee and Wyoming Railroad Company | 12 |
HS
| H and S Railroad Company | 1 |
LVRC
| Lamoille Valley | 10 |
MEC
| Maine Central | 5 |
MMA
| Montreal, Maine & Atlantic | 80 |
MSDR
| Knoxville & Holston River Railroad | 8 |
MWCX
| Midwest Railcar Corporation | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 2 |
NOKL
| Northwestern Oklahoma | 11 |
NS
| Norfolk Southern | 2 |
QGRY
| Quebec Gatineau Railway Incorporated | 2 |
RBOX
| Railbox Company | 1 |
SLC
| San Luis Central Railroad Company | 19 |
SLGG
| Progress Rail Services Corporation | 4 |
SLR
| St Lawrence & Atlantic | 2 |
SMW
| St Marys Railway West LLC | 1 |
SOU
| Southern | 1 |
TBOX
| TTX Company | 1 |
TR
| Tomahawk Railway L.P. | 5 |
YKR
| York Rail | 4 |