ABOX
| TTX Company | 5 |
AGR
| Alabama and Gulf Coast | 1 |
ALM
| Arkansas Louisiana and Mississippi Railr | 1 |
ATSF
| Atchison Topeka & Santa Fe | 2 |
ATW
| Atlantic and Western | 1 |
BAEX
| Andersons | 1 |
BCOL
| Canadian National Railways | 2 |
BKTY
| Union Pacific Railroad Company | 13 |
BM
| Boston & Maine | 2 |
BN
| Burlington Northern | 2 |
BNSF
| BNSF Railway | 2 |
CHTT
| Chicago Heights Terminal Transfer | 1 |
CIBX
| CIT Group/Capital Finance, Inc | 1 |
CIC
| Cedar Rapids & Iowa City | 1 |
CIRR
| Chattahoochee Industrial Railroad | 1 |
CMHX
| CarMath Incorporated | 7 |
CNA
| Canadian National Railways | 1 |
CNW
| Chicago & Northwestern | 4 |
CR
| Conrail | 3 |
CSX
| CSX Railroad | 9 |
DRGW
| Denver & Rio Grande Western | 1 |
EEC
| East Erie Commercial Railroad | 3 |
EPRY
| East Penn Railway | 2 |
FBOX
| TTX Company | 1 |
FGLK
| Finger Lakes Railway | 3 |
FRR
| Falls Road Railroad Company Incorporated | 5 |
GACX
| General American Marks Company | 1 |
GMRC
| Green Mountain RR | 1 |
GNWR
| Genesee and Wyoming Railroad Company | 4 |
HS
| H and S Railroad Company | 6 |
IANR
| Iowa Northern Ry | 1 |
IBT
| International Bridge and Terminal Company | 3 |
ICG
| Illinois Central Gulf | 1 |
KCS
| Kansas City Southern | 3 |
LBR
| Lowville and Beaver River Railroad Compa | 1 |
LRS
| Laurinburg and Southern | 4 |
LW
| Louisville and Wadley Railway Company | 1 |
MB
| Meridian & Bigbee | 2 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 3 |
MEC
| Maine Central | 4 |
MP
| Missouri Pacific | 6 |
MQT
| Marquette Rail | 1 |
MSDR
| Knoxville & Holston River Railroad | 1 |
MWCX
| Midwest Railcar Corporation | 1 |
NKCR
| Nebraska, Kansas & Colorado RailNet, Inc | 1 |
NS
| Norfolk Southern | 14 |
NYC
| New York Central | 1 |
ONT
| Ontario Northland Railway | 1 |
RBOX
| Railbox Company | 13 |
RFP
| Richmond Fredericksburg & Potomac | 1 |
SMW
| St Marys Railway West LLC | 1 |
SOO
| Soo Line | 1 |
SOU
| Southern | 4 |
SP
| Southern Pacific | 6 |
SPN
| SPN | 1 |
SRN
| Sabine River & Northern | 2 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TBCX
| Boeing Company | 1 |
TBOX
| TTX Company | 3 |
UP
| Union Pacific Railroad Company | 3 |
WC
| Wisconsin Central | 2 |
WCCL
| Wisconsin Central | 1 |
WCOR
| Wellsboro and Corning Railroad Company | 4 |
WCRL
| West Chester Railroad Company | 1 |
WRWK
| Providence & Worchester Railroad | 4 |
YARR
| Youngstown and Austintown Railroad | 3 |
YKR
| York Rail | 1 |