ACL
| Atlantic Coast Line | 5 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
BN
| Burlington Northern | 5 |
BO
| Baltimore & Ohio | 2 |
CAGY
| Columbus & Greenville Railway | 2 |
CBQ
| Chicago Burlington & Quincy | 2 |
CO
| Chesapeake & Ohio | 9 |
CPR
| Canadian Pacific Railway | 4 |
CR
| Conrail | 4 |
CSP
| Camas Prairie RailNet Incorporated | 1 |
CSX
| CSX Railroad | 30 |
FWCR
| Florida West Coast Railroad Incorporated | 3 |
GANO
| Georgia Northern Railway Company | 2 |
GFRR
| Georgia and Florida Railnet | 2 |
HOG
| Heart of Georgia | 2 |
IC
| Illinois Central | 1 |
IHB
| Indiana Harbor Belt | 1 |
LI
| Long Island Rail Road Company | 1 |
LN
| Louisville & Nashville | 2 |
MAMX
| Mammoet USA, Inc | 5 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
ME
| Morristown & Erie Railroad | 1 |
MP
| Missouri Pacific | 2 |
NCSL
| Nashville Chattanooga & St Louis | 2 |
NKP
| Nickel Plate | 4 |
NS
| Norfolk Southern | 4 |
NW
| Norfolk & Western | 4 |
PLE
| Pittsburgh & Lake Erie | 1 |
RPCX
| Railroad Passenger Car Numbering Bureau | 1 |
SAL
| Seaboard Air Line | 1 |
SBD
| Seaboard System | 2 |
SCL
| Seaboard Coast Line | 1 |
SGLR
| Seminole Gulf | 1 |
SLSF
| Saint Louis-San Francisco | 2 |
SM
| St. Marys Railroad | 2 |
SOO
| Soo Line | 1 |
SOU
| Southern | 17 |
SP
| Southern Pacific | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 4 |
TFTX
| Tifton Terminal Railway Museum | 2 |
TVRM
| Tennessee Valley | 1 |
UP
| Union Pacific Railroad Company | 1 |
WAB
| Wabash | 2 |