Perhaps you were looking for one of these?

• ALTX Alter Trading Co (Southern Illinois Railcar Co)
• ATCX Southern Illinois Railcar Incorporated
• BCRY Cando Contracting Limited (Barrie-Collingwood Railway)
• BDNX Baroid Drilling Fluids Incorporated
• BIRR Bellingham International Railroad LLC
• BSMX Bay State Milling Company
• CEI Chicago & Eastern Illinois
• CGIX Collingwood
• CHMX Southern Illinois Railcar Incorporated
• CIM Chicago And Illinois Midland
• CIPS Central Illinois Public Servicee
• CIRY Central Illinois Railroad Company
• CIW Chicago & Illinois Western
• EIRC Eastern Illinois Railroad Company
• FCMR Fort Collins Municipal Railway
• IC Illinois Central
• ICG Illinois Central Gulf
• ICGZ Illinois Central Railroad Company
• ICRZ Illinois Central Railroad Company
• ICZ Illinois Central
• IGMX Integrated Grain & Milling
• ILLINOIS ILLINOIS
• ILW Illinois Western Railroad
• IMRR Illinois Midland Railroad
• IN1 Illinois Northern
• IPLX Illinois Power Company
• IR Illinois Railnet
• IRYM Illinois Railway Museum
• ITAX Illinois Transit Assembly Incorporated
• ITC Illinois Terminal Railroad
• IW Illinois Western
• LLLX Louisiana Leasing Limited Of Illinois
• MI Missouri & Illinois
• MSMX Mid South Milling Company
• NIWX Northern Illinois & Wisconsin Railway
• NJII New Jersey, Indiana and Illinois
• PI Paducah and Illinois Railroad
• PNM Penny Newman Milling
• RKOX Rolling Steel LLC
• RLIX RailLink, Inc.
• SIRX Southern Illinois Railcar Company
• WLO Waterloo Railway Company (Illinois Central)