ACL
| Atlantic Coast Line | 1 |
AMTK
| Amtrak | 23 |
ARTX
| Artrain | 3 |
ATSF
| Atchison Topeka & Santa Fe | 26 |
BLE
| Bessemer & Lake Erie | 24 |
BN
| Burlington Northern | 8 |
BO
| Baltimore & Ohio | 4 |
CBQ
| Chicago Burlington & Quincy | 88 |
CGW
| Chicago Great Western | 6 |
CNW
| Chicago & Northwestern | 106 |
CRIP
| Chicago Rock Island & Pacific | 51 |
DLW
| Delaware Lackawanna & Western | 42 |
DMIR
| Duluth Missabe & Iron Range | 34 |
DPCX
| Dragon Phosphate Company | 1 |
DRGW
| Denver & Rio Grande Western | 8 |
GBW
| Green Bay & Western | 4 |
GCRX
| Grand Canyon Railway Incorporated | 1 |
GLRX
| Georgetown Loop Railroad Incorporated | 3 |
GW
| GW | 2 |
IC
| Illinois Central | 15 |
IRMX
| III TRANSPORTATION | 25 |
IRYM
| Illinois Railway Museum | 23 |
ITC
| Illinois Terminal Railroad | 1 |
JGSA
| JGSA | 1 |
KMRY
| KMRY | 1 |
LN
| Louisville & Nashville | 14 |
METX
| METRA | 83 |
MILW
| Milwaukee Road | 31 |
MLWX
| MLWX | 3 |
MNRX
| Minnesota Northstar | 2 |
MRYM
| Monticello Railway Museum | 1 |
NP
| Northern Pacific | 10 |
NW
| Norfolk & Western | 5 |
NYC
| New York Central | 1 |
PPCX
| AAPRCO Register Private Cars | 13 |
PRR
| Pennsylvania Railroad | 1 |
PULL
| Pullman | 68 |
RAS
| RAS | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 30 |
RTA
| Regional Transportation Authority | 9 |
UINT
| UINT | 1 |
UP
| Union Pacific Railroad Company | 14 |
VREX
| Virginia Railway Express | 1 |
WC
| Wisconsin Central | 1 |