AOK
| Arkansas-Oklahoma Railroad | 69 |
ATSF
| Atchison Topeka & Santa Fe | 93 |
ATW
| Atlantic and Western | 80 |
BN
| Burlington Northern | 117 |
BNSF
| BNSF Railway | 559 |
CHTT
| Chicago Heights Terminal Transfer | 7 |
CMHX
| CarMath Incorporated | 2 |
CNW
| Chicago & Northwestern | 11 |
COER
| Crab Orchard & Egyptian | 4 |
CW
| Colorado and Wyoming | 53 |
DJJX
| Joseph Transportation Incorporated | 1 |
LW
| Louisville and Wadley Railway Company | 7 |
MP
| Missouri Pacific | 14 |
MS
| Michigan Shore Railroad Incorporated | 15 |
MVRY
| Mahoning Valley Ry | 2 |
NDYX
| First Union Rail | 3 |
NOKL
| Northwestern Oklahoma | 13 |
NS
| Norfolk Southern | 1 |
SMPX
| Commercial Metal Company | 1 |
SP
| Southern Pacific | 5 |
SPSX
| Progress Rail Services Corp | 6 |
TCMX
| CIT Group/Capital Finance, Inc | 1 |
WCRC
| Washington Central | 7 |