AERC
| Albany and Eastern Railroad Company | 155 |
AOK
| Arkansas-Oklahoma Railroad | 5 |
ATW
| Atlantic and Western | 1 |
BCOL
| Canadian National Railways | 1 |
BNSF
| BNSF Railway | 5 |
CBRY
| Copper Basin Railway | 1 |
CHTT
| Chicago Heights Terminal Transfer | 1 |
CN
| Canadian National Railways | 3 |
CNIS
| Canadian National Railways | 1 |
CORP
| Central Oregon & Pacific | 26 |
CRLE
| Coe Rail Incorporated | 3 |
FURX
| First Union Rail | 1 |
GNRR
| Georgia Northeastern | 1 |
HLSC
| Hampton Railway Incorporated | 8 |
IBT
| International Bridge and Terminal Company | 1 |
LW
| Louisville and Wadley Railway Company | 2 |
MR
| McCloud Railway Company | 1 |
NDYX
| First Union Rail | 1 |
NOKL
| Northwestern Oklahoma | 6 |
SERA
| Sierra Northern Railway | 1 |
SRY
| Southern Railway of British Columbia Lim | 1 |
TR
| Tomahawk Railway L.P. | 2 |
TTZX
| TTX Company-Centerbeam Flats | 14 |
UP
| Union Pacific Railroad Company | 5 |
WC
| Wisconsin Central | 2 |
WPRR
| Willamette and Pacific | 39 |