ACL
| Atlantic Coast Line | 3 |
ARR
| Alaska Railroad | 8 |
ATSF
| Atchison Topeka & Santa Fe | 10 |
BAR
| Bangor & Aroostook | 3 |
BM
| Boston & Maine | 2 |
BN
| Burlington Northern | 25 |
BNSF
| BNSF Railway | 2 |
BO
| Baltimore & Ohio | 4 |
BOOT
| BOOT | 1 |
BRC
| Belt Railway of Chicago | 3 |
BRMX
| Berkshire Railway Museum Inc | 1 |
CBQ
| Chicago Burlington & Quincy | 2 |
CN
| Canadian National Railways | 6 |
CNW
| Chicago & Northwestern | 17 |
CO
| Chesapeake & Ohio | 3 |
CP
| Canadian Pacific Railway | 8 |
CR
| Conrail | 1 |
CRIP
| Chicago Rock Island & Pacific | 1 |
CRRM
| Colorado Railroad Museum | 1 |
CS
| Colorado & Southern | 2 |
CSL
| Chicago Short Line Railway Company | 1 |
CSOR
| Connecticut Southern | 1 |
CSRX
| Conway Scenic Railroad | 1 |
CSX
| CSX Railroad | 4 |
DGVR
| DURBIN & GREENBRIER VALLEY RAILROAD INC | 2 |
DIM
| DIM | 1 |
DMIR
| Duluth Missabe & Iron Range | 3 |
DRG
| DRG | 1 |
DRGW
| Denver & Rio Grande Western | 4 |
EL
| Erie Lackawanna | 1 |
ERIE
| Erie Railroad | 2 |
FGLK
| Finger Lakes Railway | 1 |
GMRC
| Green Mountain RR | 1 |
GN
| Great Northern | 4 |
GT
| GT | 1 |
HBT
| Houston Belt & Terminal | 1 |
IAIS
| Iowa Interstate | 1 |
IC
| Illinois Central | 3 |
ICG
| Illinois Central Gulf | 2 |
IHB
| Indiana Harbor Belt | 1 |
LN
| Louisville & Nashville | 2 |
LNE
| Lehigh and New England Ry | 2 |
MEC
| Maine Central | 2 |
MERR
| MERR | 1 |
MILW
| Milwaukee Road | 1 |
MKT
| Missouri-Kansas-Texas | 4 |
MP
| Missouri Pacific | 4 |
MRL
| Montana Rail Link | 5 |
NH
| New Haven | 2 |
NICX
| Echo freight | 1 |
NP
| Northern Pacific | 4 |
NS
| Norfolk Southern | 5 |
NW
| Norfolk & Western | 11 |
NYC
| New York Central | 1 |
PRR
| Pennsylvania Railroad | 2 |
PWV
| Pittsburgh & West Virginia | 1 |
RDG
| Reading Railroad | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 1 |
RR
| Raritan River | 1 |
SBD
| Seaboard System | 2 |
SCL
| Seaboard Coast Line | 3 |
SGLR
| Seminole Gulf | 1 |
SLRL
| SLRL | 1 |
SLSF
| Saint Louis-San Francisco | 4 |
SOO
| Soo Line | 3 |
SOU
| Southern | 7 |
SP
| Southern Pacific | 7 |
SRY
| Southern Railway of British Columbia Lim | 2 |
TCRX
| Tennessee Central Railway Musem | 3 |
TTR
| Talleyrand Terminal Railroad Company | 1 |
UC
| UC | 1 |
UP
| Union Pacific Railroad Company | 16 |
UTAH
| Utah Railway | 1 |
VGNX
| VGNX | 1 |
WAB
| Wabash | 1 |
WM
| Western Maryland | 4 |
WNYP
| Western New York and Pennsylvania | 1 |
WP
| Western Pacific | 2 |
WRL
| WRL | 1 |