AM
| Arkansas & Missouri | 1 |
AOK
| Arkansas-Oklahoma Railroad | 5 |
BCIT
| Canadian National Railways | 15 |
BCOL
| Canadian National Railways | 106 |
BN
| Burlington Northern | 14 |
BNSF
| BNSF Railway | 28 |
CAGY
| Columbus & Greenville Railway | 1 |
CBRY
| Copper Basin Railway | 1 |
CN
| Canadian National Railways | 3 |
CNA
| Canadian National Railways | 23 |
CNIS
| Canadian National Railways | 3 |
CSX
| CSX Railroad | 15 |
FURX
| First Union Rail | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 4 |
HE
| Hollis and Eastern Railroad Company | 3 |
HLSC
| Hampton Railway Incorporated | 118 |
LMIC
| Lake Michigan & Indiana Railroad | 14 |
MEC
| Maine Central | 2 |
MMA
| Montreal, Maine & Atlantic | 3 |
MR
| McCloud Railway Company | 4 |
MSRC
| Kansas City Southern | 12 |
MSV
| Mississippi and Skuna Valley Railroad Co | 10 |
NOKL
| Northwestern Oklahoma | 25 |
NS
| Norfolk Southern | 18 |
ONT
| Ontario Northland Railway | 3 |
SRY
| Southern Railway of British Columbia Lim | 17 |
TNER
| Texas Northeastern Division Mid-Michigan | 4 |
TOE
| Texas Oklahoma and Eastern RR Company | 8 |
TSE
| Texas South-Eastern Railroad Company | 2 |
TTZX
| TTX Company-Centerbeam Flats | 463 |
UP
| Union Pacific Railroad Company | 71 |
WCRC
| Washington Central | 30 |
WRWK
| Providence & Worchester Railroad | 2 |