BN
| Burlington Northern | 3 |
BNSF
| BNSF Railway | 4 |
BVRY
| Brandywine Valley Railroad Company | 1 |
CN
| Canadian National Railways | 3 |
CNW
| Chicago & Northwestern | 3 |
CP
| Canadian Pacific Railway | 1 |
CW
| Colorado and Wyoming | 1 |
IC
| Illinois Central | 2 |
ICG
| Illinois Central Gulf | 2 |
IFRX
| Infinity Rail LLC | 2 |
IHB
| Indiana Harbor Belt | 1 |
KCS
| Kansas City Southern | 3 |
LN
| Louisville & Nashville | 1 |
MP
| Missouri Pacific | 7 |
MVKX
| Tubular Transport Services | 2 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 2 |
SAY
| SAY | 1 |
SH
| Steelton and Highspire Railroad Company | 1 |
SOO
| Soo Line | 1 |
SOU
| Southern | 2 |
SP
| Southern Pacific | 2 |
TTJX
| TTX Company-Bulkhead Flats | 1 |
TTPX
| TTX Company - Bulkhead Flats | 7 |
UMP
| Upper Merion and Plymouth Railroad | 1 |
UP
| Union Pacific Railroad Company | 1 |