AGR
| Alabama and Gulf Coast | 1 |
BKTY
| Union Pacific Railroad Company | 23 |
BM
| Boston & Maine | 1 |
CSX
| CSX Railroad | 2 |
EEC
| East Erie Commercial Railroad | 8 |
FGLK
| Finger Lakes Railway | 4 |
GMRC
| Green Mountain RR | 3 |
IANR
| Iowa Northern Ry | 3 |
ITFX
| INFINITY TRANSPORTATION III LLC | 2 |
KCS
| Kansas City Southern | 3 |
LRS
| Laurinburg and Southern | 3 |
MEC
| Maine Central | 16 |
MSDR
| Knoxville & Holston River Railroad | 2 |
NS
| Norfolk Southern | 1 |
SGLR
| Seminole Gulf | 3 |
SNC
| Saratoga & North Creek Railway | 3 |
SOU
| Southern | 3 |
SRN
| Sabine River & Northern | 1 |
WRWK
| Providence & Worchester Railroad | 3 |