ABOX
| TTX Company | 1 |
AM
| Arkansas & Missouri | 3 |
ATW
| Atlantic and Western | 12 |
BAYL
| Bay Line, LLC | 5 |
BCLR
| Bay Colony | 12 |
BKTY
| Union Pacific Railroad Company | 376 |
BNSF
| BNSF Railway | 6 |
CAMY
| CAMP CHASE RAILWAY COMPANY, LLC | 20 |
CIC
| Cedar Rapids & Iowa City | 1 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CN
| Canadian National Railways | 2 |
CNA
| Canadian National Railways | 5 |
CNIS
| Canadian National Railways | 4 |
CNW
| Chicago & Northwestern | 1 |
COER
| Crab Orchard & Egyptian | 3 |
CRLE
| Coe Rail Incorporated | 1 |
CSX
| CSX Railroad | 13 |
DWC
| Canadian National Railways | 2 |
FBOX
| TTX Company | 3 |
FGLK
| Finger Lakes Railway | 178 |
GFRR
| Georgia and Florida Railnet | 1 |
GMRC
| Green Mountain RR | 2 |
GNBC
| Grainbelt Corporation | 2 |
GNRR
| Georgia Northeastern | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 4 |
GTW
| Grand Trunk Western | 3 |
HLMX
| Helm Financial Corporation | 3 |
HS
| H and S Railroad Company | 10 |
IANR
| Iowa Northern Ry | 5 |
IATR
| Iowa Traction Railroad Company | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 1 |
LRR
| Little River Railroad | 1 |
LRS
| Laurinburg and Southern | 30 |
LW
| Louisville and Wadley Railway Company | 2 |
MDW
| Minnesota Dakota and Western Railway Com | 2 |
MEC
| Maine Central | 3 |
MQT
| Marquette Rail | 2 |
MSDR
| Knoxville & Holston River Railroad | 1 |
NS
| Norfolk Southern | 3 |
NSHR
| North Shore | 1 |
ONT
| Ontario Northland Railway | 1 |
RBOX
| Railbox Company | 9 |
RPMX
| RPMG INC | 1 |
SGLR
| Seminole Gulf | 15 |
SNC
| Saratoga & North Creek Railway | 3 |
SOU
| Southern | 10 |
SRN
| Sabine River & Northern | 2 |
SRY
| Southern Railway of British Columbia Lim | 6 |
SSW
| St Louis Southwestern (Cotton Belt) | 1 |
TBOX
| TTX Company | 16 |
TR
| Tomahawk Railway L.P. | 6 |
UP
| Union Pacific Railroad Company | 3 |
WC
| Wisconsin Central | 1 |
WP
| Western Pacific | 1 |
WSOR
| Wisconsin & Southern | 1 |
YARR
| Youngstown and Austintown Railroad | 1 |
YVRR
| Yadkin Valley | 1 |