AMTK
| Amtrak | 28 |
ATSF
| Atchison Topeka & Santa Fe | 11 |
BNSF
| BNSF Railway | 3 |
CBQ
| Chicago Burlington & Quincy | 4 |
CDTX
| California DOT | 28 |
DOTX
| USDOT/Federal Railroad Administration | 3 |
GN
| Great Northern | 3 |
METX
| METRA | 3 |
MRLX
| Mid America Rail Car Leasing | 13 |
NYC
| New York Central | 1 |
PLA
| Pacific Locomotive Association [Niles Canyon Railway] | 1 |
PPCX
| AAPRCO Register Private Cars | 84 |
RBBX
| Ringling Bros. and Barnum and Bailey | 29 |
RPCX
| Railroad Passenger Car Numbering Bureau | 2 |
SAL
| Seaboard Air Line | 3 |
SCBG
| Santa Cruz Big Trees & Pacific | 1 |
SLRG
| San Luis and Rio Grande Railroad | 26 |
SP
| Southern Pacific | 8 |
TCRY
| Tri-City Railroad | 5 |
UPP
| Union Pacific Passenger | 5 |
VRE
| Virginia Railway Express | 3 |