AMTK
| Amtrak | 192 |
ARR
| Alaska Railroad | 1 |
BNSF
| BNSF Railway | 20 |
BYCX
| Chelatchie Prairie Railroad | 2 |
DLMX
| Daylight Locomotives and Machine Works Incorporated | 3 |
GN
| Great Northern | 2 |
MH
| Mount Hood Railroad | 2 |
MILX
| General Electric Rail Services | 1 |
NN
| Northern Nevada Railroad Corporation | 1 |
NYC
| New York Central | 1 |
PNWC
| PNWC | 1 |
PRPX
| Pacific Railroad Preservation Assoc | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 1 |
SLRG
| San Luis and Rio Grande Railroad | 1 |
SPS
| Spokane Portland & Seattle | 1 |
SWKR
| San Pedro and Southwestern Railway Compa | 3 |
UP
| Union Pacific Railroad Company | 2 |