AEX
| Andersons | 3 |
AKMD
| Arkansas Midland Railroad Company | 2 |
ALAB
| Alabama Railroad | 12 |
AOK
| Arkansas-Oklahoma Railroad | 108 |
ARR
| Alaska Railroad | 5 |
ATSF
| Atchison Topeka & Santa Fe | 1 |
ATW
| Atlantic and Western | 5 |
BAEX
| Andersons | 10 |
BCOL
| Canadian National Railways | 113 |
BNSF
| BNSF Railway | 9 |
BO
| Baltimore & Ohio | 5 |
BR
| Buffalo and Pittsburgh | 2 |
CHTT
| Chicago Heights Terminal Transfer | 5 |
CIBX
| CIT Group/Capital Finance, Inc | 89 |
CIC
| Cedar Rapids & Iowa City | 4 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CMHX
| CarMath Incorporated | 1 |
CN
| Canadian National Railways | 19 |
CNA
| Canadian National Railways | 32 |
CNW
| Chicago & Northwestern | 4 |
CO
| Chesapeake & Ohio | 2 |
COER
| Crab Orchard & Egyptian | 225 |
CP
| Canadian Pacific Railway | 1 |
CPAA
| Canadian Pacific Railway | 15 |
CR
| Conrail | 363 |
CRLE
| Coe Rail Incorporated | 2 |
CSX
| CSX Railroad | 100 |
FLOX
| CIT Group/Capital Finance, Inc | 30 |
FP
| Fordyce & Princeton Railroad Company | 47 |
FXE
| Ferromex | 1 |
GACX
| General American Marks Company | 33 |
GATX
| General American Marks Company | 1 |
GFRR
| Georgia and Florida Railnet | 3 |
GMSR
| Kansas City Southern | 13 |
GNWR
| Genesee and Wyoming Railroad Company | 2 |
GTW
| Grand Trunk Western | 79 |
HLMX
| Helm Financial Corporation | 9 |
HPJX
| Helm-Pacific Leasing | 81 |
HS
| H and S Railroad Company | 244 |
IBT
| International Bridge and Terminal Company | 132 |
IC
| Illinois Central | 104 |
ITFX
| INFINITY TRANSPORTATION III LLC | 2 |
KCS
| Kansas City Southern | 150 |
KCSM
| Kansas City Southern De Mexico | 82 |
KLRX
| KOCH RAIL LLC | 18 |
LC
| Lancaster & Chester | 20 |
LFCD
| Linea Coahuila Durango S.A. de C.V. | 5 |
LPN
| Longview, Portland & Northern | 1 |
LRS
| Laurinburg and Southern | 18 |
LW
| Louisville and Wadley Railway Company | 42 |
MB
| Meridian & Bigbee | 3 |
MCSA
| Moscow Camden and San Augustine Railroad | 6 |
MDW
| Minnesota Dakota and Western Railway Com | 77 |
MILW
| Milwaukee Road | 2 |
MKT
| Missouri-Kansas-Texas | 8 |
MNA
| Missouri and Northern Arkansas | 8 |
MP
| Missouri Pacific | 355 |
MRL
| Montana Rail Link | 21 |
MRMX
| Midwest Railcar Corporation | 13 |
MSRC
| Kansas City Southern | 27 |
MWCX
| Midwest Railcar Corporation | 42 |
NADX
| General Electric Rail Services | 13 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 50 |
NOKL
| Northwestern Oklahoma | 4 |
NS
| Norfolk Southern | 114 |
NW
| Norfolk & Western | 12 |
NYC
| New York Central | 148 |
PSMX
| Esco Corporation | 14 |
RJCM
| R.J. Corman Railroad Company/ Memphis Li | 2 |
RRLX
| Rail Logistics, LC | 2 |
SIRX
| Southern Illinois Railcar Company | 11 |
SOU
| Southern | 6 |
SP
| Southern Pacific | 55 |
SSW
| St Louis Southwestern (Cotton Belt) | 63 |
TFM
| Kansas City Southern De Mexico | 16 |
TR
| Tomahawk Railway L.P. | 29 |
UP
| Union Pacific Railroad Company | 77 |
VCY
| Galveston Railroad, L.P. | 9 |
WCOR
| Wellsboro and Corning Railroad Company | 9 |
WFRX
| WELLS FARGO RAIL CORPORATION | 9 |
WP
| Western Pacific | 1 |
WRWK
| Providence & Worchester Railroad | 29 |
WSOR
| Wisconsin & Southern | 12 |