AGR
| Alabama and Gulf Coast | 1 |
AM
| Arkansas & Missouri | 1 |
AMTK
| Amtrak | 1 |
ATW
| Atlantic and Western | 3 |
BM
| Boston & Maine | 1 |
BN
| Burlington Northern | 1 |
CBQ
| Chicago Burlington & Quincy | 2 |
CIC
| Cedar Rapids & Iowa City | 2 |
CNJ
| Central Rail Road of New Jersey | 1 |
CNW
| Chicago & Northwestern | 2 |
COER
| Crab Orchard & Egyptian | 1 |
CP
| Canadian Pacific Railway | 15 |
CR
| Conrail | 2 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 8 |
CUOH
| Columbus and Ohio River Railroad Company | 4 |
DLW
| Delaware Lackawanna & Western | 1 |
DMM
| Dansville and Mount Morris Railroad Comp | 1 |
DUPX
| Du Pont De Nemours and Company Incorporated | 3 |
EEC
| East Erie Commercial Railroad | 5 |
FGLK
| Finger Lakes Railway | 1 |
FSRR
| FerroSur | 3 |
FXE
| Ferromex | 1 |
GMRC
| Green Mountain RR | 2 |
GTW
| Grand Trunk Western | 3 |
GVSR
| Galveston Railroad L.P. | 1 |
HS
| H and S Railroad Company | 6 |
IATR
| Iowa Traction Railroad Company | 1 |
IC
| Illinois Central | 2 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 1 |
LVRC
| Lamoille Valley | 1 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
MEC
| Maine Central | 7 |
MNCW
| Metro-North Commuter Railroad | 5 |
MP
| Missouri Pacific | 4 |
MRL
| Montana Rail Link | 1 |
NH
| New Haven | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NOKL
| Northwestern Oklahoma | 1 |
NS
| Norfolk Southern | 1 |
NSHR
| North Shore | 1 |
NYC
| New York Central | 2 |
PAL
| Paducah & Louisville | 2 |
PGR
| Progressive Rail, Inc | 1 |
PRL
| Penn Eastern Rail Lines Incorporated | 1 |
PRR
| Pennsylvania Railroad | 2 |
SBRR
| Stourbridge Railroad Company | 1 |
SOU
| Southern | 3 |
SP
| Southern Pacific | 4 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TASD
| Terminal Alabama State Docks | 1 |
TR
| Tomahawk Railway L.P. | 1 |
TSBY
| Great Lakes Central Railroad | 1 |
VTR
| Vermont Railway | 1 |
WCOR
| Wellsboro and Corning Railroad Company | 1 |