AM
| Arkansas & Missouri | 1 |
ATW
| Atlantic and Western | 4 |
BCLR
| Bay Colony | 2 |
BKTY
| Union Pacific Railroad Company | 13 |
BN
| Burlington Northern | 1 |
BR
| Buffalo and Pittsburgh | 2 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CNA
| Canadian National Railways | 2 |
CNW
| Chicago & Northwestern | 6 |
CP
| Canadian Pacific Railway | 55 |
CPAA
| Canadian Pacific Railway | 20 |
CSX
| CSX Railroad | 130 |
FCRD
| First Coast Railway | 6 |
FXE
| Ferromex | 6 |
GACX
| General American Marks Company | 1 |
GNRR
| Georgia Northeastern | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GTW
| Grand Trunk Western | 4 |
HCRY
| Huron Central Railway | 3 |
HESR
| Huron and Eastern | 1 |
HS
| H and S Railroad Company | 3 |
IATR
| Iowa Traction Railroad Company | 1 |
IFRX
| Infinity Rail LLC | 1 |
LRS
| Laurinburg and Southern | 20 |
MP
| Missouri Pacific | 1 |
MQT
| Marquette Rail | 4 |
NS
| Norfolk Southern | 7 |
NWR
| Nashville & Western Railroad Corp. | 2 |
OAR
| Old Augusta Railroad | 4 |
SGLR
| Seminole Gulf | 3 |
SOU
| Southern | 129 |
WFRX
| WELLS FARGO RAIL CORPORATION | 1 |
WLO
| Waterloo Railway Company (Illinois Central) | 1 |
WRWK
| Providence & Worchester Railroad | 24 |
WSOR
| Wisconsin & Southern | 1 |