ABS
| Alabama Southern Railroad | 1 |
AEQX
| ATEL Equipment Corporation | 1 |
ALT
| AIRLAKE TERMINAL RAILWAY COMPANY | 1 |
AOK
| Arkansas-Oklahoma Railroad | 12 |
APPX
| Appalachian Railcar Services | 1 |
ATSF
| Atchison Topeka & Santa Fe | 23 |
ATTX
| TTX Company - Container Flats | 50 |
ATW
| Atlantic and Western | 44 |
AWXX
| East Carbon development Company | 26 |
BCOL
| Canadian National Railways | 3 |
BLPX
| BLPX | 1 |
BN
| Burlington Northern | 24 |
BNSF
| BNSF Railway | 51 |
BTCX
| Browner Turnout Company | 47 |
BVRY
| Brandywine Valley Railroad Company | 11 |
CC
| Chicago Central & Pacific | 1 |
CGW
| Chicago Great Western | 1 |
CN
| Canadian National Railways | 44 |
CNA
| Canadian National Railways | 13 |
CNIS
| Canadian National Railways | 3 |
CO
| Chesapeake & Ohio | 6 |
CP
| Canadian Pacific Railway | 694 |
CPAA
| Canadian Pacific Railway | 2 |
CR
| Conrail | 12 |
CRLE
| Coe Rail Incorporated | 4 |
CSS
| Chicago South Shore And South Bend | 15 |
CSX
| CSX Railroad | 13 |
CW
| Colorado and Wyoming | 7 |
DGVR
| DURBIN & GREENBRIER VALLEY RAILROAD INC | 1 |
DODX
| Department Of Defense | 88 |
DRGW
| Denver & Rio Grande Western | 1 |
ECXX
| East Carbon Development Company | 6 |
EJE
| Elgin Joliet and Eastern | 35 |
ELS
| Escanaba and Lake Superior Railroad Comp | 1 |
ERGX
| Hudson Logistics | 3 |
FCCM
| Compania de Ferrocarriles Chiapas Mayab | 10 |
FEC
| Florida East Coast | 463 |
FRR
| Falls Road Railroad Company Incorporated | 4 |
FTTX
| TTX Company | 274 |
FURX
| First Union Rail | 3 |
FWRY
| Fillmore Western Railway Company | 2 |
GBRX
| Greenbrier Leasing Corporation | 3 |
GIMX
| General American Marks Company | 113 |
GNWR
| Genesee and Wyoming Railroad Company | 14 |
GPSX
| Georgia-Pacific Corporation Eastern Wood Products Mfg.Divisi | 1 |
GTTX
| TTX Company - Flat Cars | 33 |
GTW
| Grand Trunk Western | 6 |
HESX
| Heritage Environmental Services | 4 |
HPAX
| International Paper Company | 4 |
HS
| H and S Railroad Company | 37 |
HTTX
| TTX Company | 180 |
IATR
| Iowa Traction Railroad Company | 1 |
ICE
| Iowa Chicago and Eastern | 182 |
ICG
| Illinois Central Gulf | 1 |
IFRX
| Infinity Rail LLC | 1 |
INLX
| Incoal Company | 42 |
IPCX
| International Paper Company | 4 |
ITTX
| TTX Company | 525 |
JOBX
| Tealinc Limited | 1 |
JTLX
| CIT Group/Capital Finance, Inc | 6 |
JTTX
| TTX Company | 76 |
KCS
| Kansas City Southern | 13 |
KRL
| Kasgro Rail Lines | 52 |
KTTX
| TTX Company | 3 |
KWUX
| Siemens Power Corporation | 1 |
LBR
| Lowville and Beaver River Railroad Compa | 13 |
LMIC
| Lake Michigan & Indiana Railroad | 138 |
LTTX
| TTX Company | 16 |
LW
| Louisville and Wadley Railway Company | 1 |
MCVX
| Massuchusetts Call/Volunteer Firefighters Assoc. | 1 |
MEC
| Maine Central | 1 |
MILW
| Milwaukee Road | 8 |
MP
| Missouri Pacific | 12 |
MRL
| Montana Rail Link | 1 |
MSO
| Michigan Southern | 2 |
MTTX
| TTX Company | 139 |
NICX
| Echo freight | 1 |
NJRC
| New Jersey Rail Carrier LLC | 8 |
NOKL
| Northwestern Oklahoma | 2 |
NP
| Northern Pacific | 1 |
NS
| Norfolk Southern | 130 |
NTTX
| TTX Company | 2 |
NW
| Norfolk & Western | 5 |
NWSX
| NEW YORK RAIL LOGISTICS LLC | 3 |
NYC
| New York Central | 1 |
OTTX
| TTX Company | 1280 |
PAL
| Paducah & Louisville | 1 |
PEYX
| Transportation Technology Services Inc | 1 |
PGR
| Progressive Rail, Inc | 1 |
PHMX
| P&H Mining Equipment | 1 |
PRR
| Pennsylvania Railroad | 1 |
PTTX
| TTX Company | 497 |
QTTX
| TTX Company | 24 |
QUAX
| Redstreak, LLC | 3 |
RBOX
| Railbox Company | 1 |
RFRX
| Rick Franklin Corporation | 1 |
RTIX
| RTI - Railroad Services | 1 |
RTTX
| TTX Company | 827 |
SBD
| Seaboard System | 2 |
SFS
| Santa Fe Southern | 6 |
SKOL
| South Kansas and Oklahoma | 1 |
SLR
| St Lawrence & Atlantic | 3 |
SOO
| Soo Line | 26 |
SOU
| Southern | 151 |
SP
| Southern Pacific | 37 |
SPMW
| Southern Pacific Maintenance of Way | 1 |
SPSX
| Progress Rail Services Corp | 1 |
SSW
| St Louis Southwestern (Cotton Belt) | 2 |
TBCX
| Boeing Company | 2 |
TFM
| Kansas City Southern De Mexico | 1 |
TGX
| TGX | 1 |
TOE
| Texas Oklahoma and Eastern RR Company | 1 |
TTAX
| TTX Company - Spine Cars | 3 |
TTCX
| TTX Company | 22 |
TTDX
| TTX Company - DOD Service Flats | 84 |
TTEX
| TTX Company - Articulated Flat Cars (TOFC/COFC) | 751 |
TTHX
| TTX Company - Flat Cars | 98 |
TTJX
| TTX Company-Bulkhead Flats | 14 |
TTMX
| TTX Company | 12 |
TTOX
| TTX Company | 1 |
TTWX
| TTX Company | 8 |
TTX
| TTX Company | 2 |
TTXX
| TTX Company | 25 |
TTYX
| TTX Company | 13 |
TVRR
| Tulare Valley Railroad Company | 11 |
TZPR
| Tazewell & Peoria Railroad | 7 |
UCSX
| International Paper Company | 2 |
UP
| Union Pacific Railroad Company | 116 |
UPCX
| Clean Harbors Environmental Sciences, Inc. | 4 |
USWX
| USA Waste Services Incorporated | 1 |
VRCX
| Vortex Recycling | 1 |
VTTX
| TTX Company | 34 |
WC
| Wisconsin Central | 13 |
WCTR
| WCTU Company White City Terminal Railway | 21 |
WE
| Wheeling & Lake Erie | 1 |
WPRR
| Willamette and Pacific | 1 |
WTTX
| TTX Company | 10 |
XTTX
| TTX Company | 134 |
YARR
| Youngstown and Austintown Railroad | 1 |