ABS
| Alabama Southern Railroad | 6 |
ATW
| Atlantic and Western | 39 |
BCOL
| Canadian National Railways | 45 |
BNSF
| BNSF Railway | 14 |
CN
| Canadian National Railways | 12 |
CNIS
| Canadian National Railways | 12 |
CP
| Canadian Pacific Railway | 10 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
HE
| Hollis and Eastern Railroad Company | 1 |
HS
| H and S Railroad Company | 1 |
ICE
| Iowa Chicago and Eastern | 23 |
JTSX
| Joseph Transportation Incorporated | 1 |
KXHR
| Knoxville & Holston River RR | 2 |
MMA
| Montreal, Maine & Atlantic | 4 |
NOKL
| Northwestern Oklahoma | 75 |
SRLX
| Southern Rail Leasing Incorporated | 3 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TKEN
| Tennken Railroad Company Incorporated | 1 |
TTPX
| TTX Company - Bulkhead Flats | 24 |
WCRC
| Washington Central | 2 |
WCTR
| WCTU Company White City Terminal Railway | 34 |