NFLShop.com - NFL Jerseys and Gear
Enter the Classic Streamliners Bookstore.
Shop for Trains and Railroad Collectibles on eBay
Shop for Railroad and Train Collectibles on eBay
Enter the Classic Streamliners Bookstore.
NFLShop.com - NFL Jerseys and Gear

List of Reporting Marks - I

Note: Marks ending in U are for container owners; marks ending in X are not common carriers; marks ending in Z are for trailers without flanged wheels. All other marks are of common-carrier railroads.

IAIS - Iowa Interstate Railroad
IALU - Japan Line, Ltd
IANR - Iowa Northern Railway
IAPX - Liquid Air, Inc.; Air Liquide America Corporation
IASZ - Iowa Interstate Railroad
IAT - Iowa Terminal Railroad
IATR - Iowa Traction Railroad
IBCX - Indiana Boxcar Corporation
IBNU - Interpool Container Pty, Ltd.
IBPX - Merchants Despatch Transportation Corp.; IBP, Inc.; Trinity Industries Leasing Co. (Lessee: IBP, Inc.; Tyson Foods, Inc.)
IBT - International Bridge and Terminal Company
IBYU - Tuscola and Saginaw Bay Railway
IC - Illinois Central Railroad; Illinois Central Gulf Railroad; Canadian National Railway
ICCU - ICCU Containers, Inc.
ICCX - International Catalyst Corporation
ICE - Iowa, Chicago and Eastern Railroad
ICEU - Inter-Continental Equipment, Inc.
ICEZ - GATX Capital Corporation
ICG - Illinois Central Gulf Railroad; Illinois Central Railroad; Canadian National Railway
ICGU - Illinois Central Railroad; Canadian National Railway
ICGZ - Illinois Central Railroad; Canadian National Railway
ICHU - Ingetra, AG
ICIU - Intermodal Containers, Inc.
ICIX - ICI Americas, Inc.
ICIZ - Intermodal Containers, Inc.
ICLU - International Container Leasing
ICLX - Intercoastal Leasing, Inc.
ICLZ - International Chassis Leasing, Inc.
ICMU - Interox America
ICMX - Illinois Cereal Mills, Inc.
ICOU - Japan Line, Ltd.
ICPU - Intermodal Container Pool, Inc.
ICPZ - Intermodal Container Pool, Inc.
ICRK - Indian Creek Railroad
ICRU - Ingetra, AG
ICRX - Island Creek Coal Company; Island Creek Corporation
ICRZ - Illinois Central Railroad; Canadian National Railway
ICSU - Transamerica Leasing, Inc.
ICSZ - Transamerica Leasing, Inc.; Union Pacific Railroad
IDAC - Idaho Central Railroad; Boise Pacific Railroad
IDAX - Industria del Alcali, SA
IDCU - Ideal Container
IDOX - United States Department of Energy (Idaho Operations Office)
IDSZ - Industrial Distribution Service, Inc.
IEAU - Intermodal Equipment Associates
IELZ - Iran Express Lines
IESX - IESX Corporation; Alliant Energy
IFBX - Indiana Farm Bureau Cooperative Association, Inc.; GE Rail Services Corporation
IFCX - Interstate Foods Corporation
IFLU - Interflow
IFOX - Industrial Fuel Oil, Inc.
IFRX - Infinity Rail
IFSU - Interlink Freight Systems
IFWZ - Independent Freightway, Inc.
IGN - International-Great Northern
IGPX - Industrial Steam Products
IHAU - Ihora Chemical Industrial
IHB - Indiana Harbor Belt Railroad
IHCU -
IHRC - Indiana Hi-Rail Corporation
IHSX - Alberni Pacific Railway (Western Vancouver Island Heritage Society)
IICZ - Illinois Central Railroad; Canadian National Railway
IIIU - III Transportation
IIIZ - III Transportation
IILU - Independent Container Line
IILZ - Independent Container Line
IIRC - Indiana Interstate Railway
IIRZ - III Transportation
IKCU - Interpool
IKKU - ICCU Containers, Inc.
IKSU - Transamerica Leasing, Inc.
ILDX - General Electric (Lighting Business Group)
ILMU - Flow Line Transport
ILSX - Independent Locomotive Service
ILTU - International Liquid Transport Company, Bv
ILW - Illinois Western Railroad
IMCX - International Minerals and Chemical Corporation; IMC Global Operations
IMEX - Indiana and Michigan Electric Company
IMFX - General American Transportation Corporation
IMMX - Industrial Minera Mexico, SA
IMRL - Illinois and Missouri Rail Link; Iowa, Chicago and Eastern Railroad
IMRR - Illinois and Midland Railroad
IMSX - IMCO Services (a division of the Halliburton Company); International Mill Service
IMSZ - Intermodal Systems, Inc.
IMTX - Multifoods Transportation, Inc.; AG Processing, Inc.
IMXZ - Intermodal Express, Inc.
IN - Indiana Northeastern Railroad
INCU - Intercontinental Transport, B.V.
INCX - Inco Railway
INCZ - Intercontinental Transport, B.V.
INCZ - Intercontinental Transport, B.V.
INDU - Dorothea Marine Entreprise and Management
INDX - Indelpro, SA de CV
INFX - Infineum USA, Ltd.
INGX - Ingomar Packing Company; GE Rail Services Corporation
INKU - Interpool, Ltd.
INLX - Inland Steel Coal Company; Incoal Company
INOH - Indiana and Ohio Railroad
INOX - Indiana and Ohio Rail Corporation
INPR - Idaho Northern and Pacific Railroad
INRD - Indiana Railroad
INSU - Intersub Services
INSX - Independent Salt Company
INT - Interstate Railroad; Norfolk Southern
INTU - Interpool Container Pty, Ltd.
INYU - Infinity Transportation Logistics
INTZ - Interpool, Ltd.
IOCR - Indiana and Ohio Central Railroad
IOCX - Rail Enterprises, Inc.
IOLU - Textainer Equipment Management (US), Ltd.
IOPX - Iowa Power and Light Company; MidAmerican Energy Company
IORY - Indiana and Ohio Railway
IPBX - INNOPHOS,Inc
IPCU - Independent Container Line
IPCX - International Paper
IPEX - Indeck Power Equipment Company
IPLX - Illinois Power Company
IPOX - A and R Leasing, LLP
IPPX - Intermountain Power Agency
IPSX - Midwest Energy Services Company; General American Marks Company
IPWX - Interstate Power Company; Alliant Energy
IQIX - Industria Quimica Del letmo, SA de CV
IR - Illinois RailNet
IREX - IRECO, Inc.
IRLX - Western Railroad Supply, Inc.
IRMZ - III Transportation
IRN - Conrail
IRRC - Iowa Railroad
IRRS - International Rail Road Systems, Inc.
IRSZ - Interpool/Rail Services, Ltd.
IRTX - Inter-Rail Transport
ISCU - I.S.C. Chemicals, Ltd.
ISCX - ISC, Inc.
ISG - ISG Railways
ISIZ - Intermodal Services, Inc.
ISLU - Islandia, Ltd.
ISPX - Western Company of North America
ISR - Iowa Southern Railroad
ISRR - Indiana Southern Railroad
ISSR - ISS Rail, Inc.
ISSU - Iceland Steamship Company, Ltd.
ISU - Iowa Southern Utilities (Southern Industrial Railroad)
ISW - Indiana Southwestern Railway
ITAU - Italian Line
ITAX - Illinois Transit Assembly, Inc.
ITB - Island Tug and Barge
ITC - Illinois Terminal Railroad; Norfolk and Western Railroad; Norfolk Southern
ITCU - Intercontainer
ITCX - International Technologies Corporation
ITDX - SULCOM, Inc.
ITEU - Compagnia Italiana Investimenti Alternativi
ITFX - Infinity Transportation
ITGX - ITG, Inc.
ITIU - International Transchem, Inc.
ITIX - Intermodal Technologies, Inc.
ITKU - Intertank, Ltd.
ITLU - Itel Containers International Corporation
ITLX - GE Rail Services Corporation
ITRU - Itel Containers International Corporation
ITSU - Iberhansaetic Transport System
ITSZ - International Transportation Service, Inc.
ITTX - Trailer Train Company, TTX Company
ITXX - Tiaxcalteca de Industrias, SA de CV
IU - Indianapolis Union
IVCX - Invista S.A.R.L.
IVLU - Ivarans Rederei, A/S
IXEU - Interox Quimica, SA
IXWU - Interox Chemicals, Ltd.

A retired Illinois Central caboose near Cairo, Illinois.

Classic Streamliners - TRAIN​CYCLOPEDIA

A retired Illinois Central caboose near Cairo, Illinois.

By Mobilus In Mobili (https://www.flickr.com/photos/mobili/24165274899/) [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons