Perhaps you were looking for one of these?

• IAIS Iowa Interstate
• CACV Cooperstown and Charlotte Valley
• FCRD First Coast Railway
• FURX First Union Rail
• FGW First Great Western
• COOX First Union Rail
• FEPX FirstEnergy Generation Corp
• GIHX Cornerstone C and M Incorporated d/b/a Gifford Hill and Comp
• GROX First Union Rail
• INTX Interstate Commodities Inc.
• MFCX First Union Rail
• NDYX First Union Rail
• PRAX First Union Rail
• RUSX First Union Rail
• SBTX FIRST UNION RAIL
• SCYX First Union Rail
• TGOX First Union Rail
• TQEX First Union Rail
• TRGX First Union Rail
• UMPX First Union Rail
• WFIX First Union Rail
• WSOX First Union Rail
• XTRX First Union Rail
• CACX Cooperstown & Charlotte Valley Railroad
• FTCU Firsttank Corporation
• IDCZ Interstate Distributor Co
• CRST CRST
• INTERSTATE INTERSTATE