AGR
| Alabama and Gulf Coast | 3 |
AN
| Apalachicola Northern | 1 |
BAEX
| Andersons | 1 |
BKTY
| Union Pacific Railroad Company | 12 |
CAMY
| CAMP CHASE RAILWAY COMPANY, LLC | 6 |
CLSX
| Cargill Incorporated Salt Division | 2 |
CP
| Canadian Pacific Railway | 2 |
CSX
| CSX Railroad | 21 |
EEC
| East Erie Commercial Railroad | 3 |
FGLK
| Finger Lakes Railway | 1 |
FRR
| Falls Road Railroad Company Incorporated | 1 |
GMRC
| Green Mountain RR | 6 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
HS
| H and S Railroad Company | 4 |
KCSM
| Kansas City Southern De Mexico | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 2 |
LRS
| Laurinburg and Southern | 17 |
MEC
| Maine Central | 8 |
MSDR
| Knoxville & Holston River Railroad | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
PAL
| Paducah & Louisville | 2 |
PDRR
| Pee Dee River RR | 7 |
SNC
| Saratoga & North Creek Railway | 4 |
SOU
| Southern | 1 |
SRN
| Sabine River & Northern | 2 |
WRWK
| Providence & Worchester Railroad | 5 |