ABOX
| TTX Company | 1 |
ALM
| Arkansas Louisiana and Mississippi Railr | 1 |
AOK
| Arkansas-Oklahoma Railroad | 1 |
BCOL
| Canadian National Railways | 1 |
BM
| Boston & Maine | 1 |
CAMY
| CAMP CHASE RAILWAY COMPANY, LLC | 1 |
CIC
| Cedar Rapids & Iowa City | 2 |
CMHX
| CarMath Incorporated | 1 |
CN
| Canadian National Railways | 1 |
CNA
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 1 |
CPAA
| Canadian Pacific Railway | 4 |
CR
| Conrail | 1 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 2 |
CV
| Central Vermont | 1 |
DMM
| Dansville and Mount Morris Railroad Comp | 4 |
DRGW
| Denver & Rio Grande Western | 1 |
EEC
| East Erie Commercial Railroad | 2 |
FBOX
| TTX Company | 1 |
FCRD
| First Coast Railway | 1 |
GACX
| General American Marks Company | 1 |
GMRC
| Green Mountain RR | 1 |
HLMX
| Helm Financial Corporation | 1 |
HS
| H and S Railroad Company | 1 |
IATR
| Iowa Traction Railroad Company | 1 |
ICG
| Illinois Central Gulf | 1 |
KCSM
| Kansas City Southern De Mexico | 1 |
LRWN
| Little Rock & Western | 1 |
MDW
| Minnesota Dakota and Western Railway Com | 1 |
MEC
| Maine Central | 1 |
MP
| Missouri Pacific | 2 |
MSDR
| Knoxville & Holston River Railroad | 1 |
MWCX
| Midwest Railcar Corporation | 7 |
PGR
| Progressive Rail, Inc | 1 |
SIRX
| Southern Illinois Railcar Company | 2 |
SOU
| Southern | 1 |
SP
| Southern Pacific | 10 |
SRN
| Sabine River & Northern | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 3 |
TCWR
| Twin Cities and Western | 1 |
TR
| Tomahawk Railway L.P. | 1 |
UCRY
| Utah Central | 1 |
UP
| Union Pacific Railroad Company | 1 |
WC
| Wisconsin Central | 6 |
WSOR
| Wisconsin & Southern | 9 |