ATSF
| Atchison Topeka & Santa Fe | 4 |
BN
| Burlington Northern | 1 |
BNSF
| BNSF Railway | 1 |
CHTT
| Chicago Heights Terminal Transfer | 2 |
CNW
| Chicago & Northwestern | 1 |
CR
| Conrail | 1 |
CSX
| CSX Railroad | 2 |
DME
| Dakota, Minnesota and Eastern | 4 |
DRGW
| Denver & Rio Grande Western | 2 |
GNRR
| Georgia Northeastern | 1 |
GVSR
| Galveston Railroad L.P. | 10 |
HPJX
| Helm-Pacific Leasing | 2 |
HS
| H and S Railroad Company | 3 |
LNAC
| Chattahoochee Bay Railroad, LLC | 7 |
MET
| Modesto and Empire Traction Company | 2 |
MP
| Missouri Pacific | 4 |
MR
| McCloud Railway Company | 1 |
NSHR
| North Shore | 4 |
SP
| Southern Pacific | 6 |
SSW
| St Louis Southwestern (Cotton Belt) | 5 |
STE
| Stockton Terminal and Eastern RR | 2 |
UP
| Union Pacific Railroad Company | 1 |
USLX
| General Electric Rail Services | 1 |
VCY
| Galveston Railroad, L.P. | 1 |
WC
| Wisconsin Central | 1 |
WCOR
| Wellsboro and Corning Railroad Company | 2 |
WSOR
| Wisconsin & Southern | 2 |
YARR
| Youngstown and Austintown Railroad | 2 |