AC
| Algoma Central | 3 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
BCOL
| Canadian National Railways | 1 |
CN
| Canadian National Railways | 1 |
COER
| Crab Orchard & Egyptian | 1 |
DWC
| Canadian National Railways | 4 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
GAEX
| General American Marks Company | 1 |
HKRX
| HKRX | 1 |
HPJX
| Helm-Pacific Leasing | 1 |
ICG
| Illinois Central Gulf | 2 |
JTSX
| Joseph Transportation Incorporated | 3 |
MOSX
| Mosaic Corporation | 3 |
RTAX
| RTAX | 1 |
TTPX
| TTX Company - Bulkhead Flats | 1 |
UP
| Union Pacific Railroad Company | 1 |
WC
| Wisconsin Central | 5 |
ZEKX
| ZEKX | 1 |