AMTK
| Amtrak | 165 |
ATAX
| Arizona Transit Assembly | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BNSF
| BNSF Railway | 14 |
CLPX
| Boulder Scientific Company | 1 |
CNW
| Chicago & Northwestern | 3 |
DOTX
| USDOT/Federal Railroad Administration | 1 |
IC
| Illinois Central | 3 |
KCS
| Kansas City Southern | 3 |
MJRX
| Railway Service Contractors Inc | 6 |
MNGR
| Maine Narrow Gauge RR Museum | 3 |
MP
| Missouri Pacific | 1 |
MRLX
| Mid America Rail Car Leasing | 3 |
NS
| Norfolk Southern | 3 |
NYC
| New York Central | 1 |
PPCX
| AAPRCO Register Private Cars | 24 |
RBBX
| Ringling Bros. and Barnum and Bailey | 33 |
SHRX
| Smoky Hill Railway & Historical Society | 3 |
SLIM
| St Louis, Iron Mountain & Southern | 2 |
UP
| Union Pacific Railroad Company | 1 |
UPP
| Union Pacific Passenger | 114 |