ABOX
| TTX Company | 3 |
ALY
| Allegheny and Eastern Railroad Incorpora | 2 |
AOK
| Arkansas-Oklahoma Railroad | 5 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 4 |
AZER
| Arizona Eastern Railway Company | 1 |
BAR
| Bangor & Aroostook | 3 |
BM
| Boston & Maine | 7 |
BN
| Burlington Northern | 3 |
BNSF
| BNSF Railway | 1 |
CN
| Canadian National Railways | 4 |
CNA
| Canadian National Railways | 1 |
CP
| Canadian Pacific Railway | 1 |
CRLE
| Coe Rail Incorporated | 4 |
CSX
| CSX Railroad | 10 |
CTN
| Canton Railroad Company | 10 |
FBOX
| TTX Company | 9 |
FLOX
| CIT Group/Capital Finance, Inc | 1 |
GMRC
| Green Mountain RR | 4 |
GNWR
| Genesee and Wyoming Railroad Company | 1 |
GVSR
| Galveston Railroad L.P. | 1 |
HLMX
| Helm Financial Corporation | 6 |
HPJX
| Helm-Pacific Leasing | 1 |
IBT
| International Bridge and Terminal Company | 4 |
KCS
| Kansas City Southern | 1 |
MEC
| Maine Central | 20 |
MMA
| Montreal, Maine & Atlantic | 3 |
MSDR
| Knoxville & Holston River Railroad | 2 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NOKL
| Northwestern Oklahoma | 3 |
NS
| Norfolk Southern | 5 |
RBOX
| Railbox Company | 3 |
RFP
| Richmond Fredericksburg & Potomac | 4 |
SLC
| San Luis Central Railroad Company | 4 |
SLR
| St Lawrence & Atlantic | 5 |
SOU
| Southern | 3 |
TBOX
| TTX Company | 1 |
TR
| Tomahawk Railway L.P. | 4 |
USLX
| General Electric Rail Services | 1 |
WC
| Wisconsin Central | 2 |
WCCL
| Wisconsin Central | 8 |
WCOR
| Wellsboro and Corning Railroad Company | 3 |
WREX
| Western Railroad Equipment Company | 1 |
WRWK
| Providence & Worchester Railroad | 60 |
YB
| Youngstown Belt Railroad Company | 1 |
YKR
| York Rail | 1 |