ARR
| Alaska Railroad | 1 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
BLE
| Bessemer & Lake Erie | 9 |
BN
| Burlington Northern | 9 |
BNSF
| BNSF Railway | 3 |
BO
| Baltimore & Ohio | 1 |
CBRY
| Copper Basin Railway | 1 |
CNW
| Chicago & Northwestern | 17 |
CR
| Conrail | 49 |
CTRK
| CTRK | 1 |
CTRN
| Union Pacific Railroad Company | 1 |
DRGW
| Denver & Rio Grande Western | 1 |
EAMX
| Everest Railcar Services, Inc | 3 |
GABX
| General American Marks Company | 5 |
GACX
| General American Marks Company | 1 |
HKGX
| Haines & Kibblehouse Inc. | 2 |
HMJX
| HELM Financial Corporation | 1 |
HPJX
| Helm-Pacific Leasing | 1 |
LVRR
| Lycoming Valley | 14 |
MP
| Missouri Pacific | 6 |
NS
| Norfolk Southern | 103 |
OFOX
| RESIDCO | 2 |
PC
| Penn Central | 1 |
PPLX
| Pennsylvania Power and Light Company | 1 |
PRR
| Pennsylvania Railroad | 2 |
RBMN
| Reading Blue Mountain & Northern | 149 |
RDG
| Reading Railroad | 3 |
SOU
| Southern | 16 |
UP
| Union Pacific Railroad Company | 11 |
VMLX
| VMLX | 1 |
VULX
| Vulcan Materials | 3 |
WIMX
| Wimpey Minerals USA, Inc. | 50 |