AGR
| Alabama and Gulf Coast | 6 |
ATW
| Atlantic and Western | 2 |
BAEX
| Andersons | 4 |
BKTY
| Union Pacific Railroad Company | 1 |
CIRR
| Chattahoochee Industrial Railroad | 5 |
CNW
| Chicago & Northwestern | 2 |
CSX
| CSX Railroad | 65 |
EEC
| East Erie Commercial Railroad | 39 |
FCRD
| First Coast Railway | 1 |
FGLK
| Finger Lakes Railway | 10 |
GMRC
| Green Mountain RR | 5 |
GTRA
| Golden Triangle Railroad | 1 |
HLMX
| Helm Financial Corporation | 1 |
HS
| H and S Railroad Company | 37 |
KCS
| Kansas City Southern | 6 |
KRR
| Kiamichi | 2 |
MB
| Meridian & Bigbee | 1 |
MEC
| Maine Central | 10 |
MP
| Missouri Pacific | 1 |
MSDR
| Knoxville & Holston River Railroad | 1 |
NS
| Norfolk Southern | 5 |
PDRR
| Pee Dee River RR | 5 |
SLR
| St Lawrence & Atlantic | 2 |
SOU
| Southern | 2 |
SP
| Southern Pacific | 6 |
SRN
| Sabine River & Northern | 12 |
WC
| Wisconsin Central | 2 |
YB
| Youngstown Belt Railroad Company | 4 |