List of reporting marks: U

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.

U

• UBTX - Union Camp Corporation
• UCCX - Union Carbide Canada, Ltd.
• UCEX - Union Electric Company
• UCFX - Union Carbide Corporation
• UCLX - Vulcan Minerals Company
• UCOX - Union Carbide Corporation
• UCPX - Essem Corporation
• UCR - Utah Coal Route
• UCRY - Utah Central Railway
• UELX - United Equipment Leasing Associates; Archer Daniels Midland
• UECZ - Union Elevator Co.
• UEEZ - Union Equity Elevator Co.
• UEFZ - Union Equity
• UFIX - Utility Fuels, Inc.
• UIWX - Riley Stoker Corporation
• UMP - Upper Merion and Plymouth Railroad
• UMPX - Upper Merion and Plymouth Leasing Company
• UNI - Unity Railways
• UNCX - Union Carbide Canada, Ltd.
• UNPX - Procor
• UNSX - Unitrain Services
• UO - Union Railroad (Oregon)
• UOCX - General American Transportation Corporation
• UP - Union Pacific Railroad
• UPAX - United Power Association
• UPB - Union Pacific Railroad ^[1]
• UPFE - Pacific Fruit Express; Union Pacific Railroad
• UPM - Union Pacific Railroad (Milwaukee Road directed operations)
• UPOZ - United Parcel Service
• UPP - Union Pacific Railroad (passenger cars)
• UPRQ - Union Pacific Railroad End Of Train Devices
• UPRX - Union Pacific Fruit Express Company
• UPS - Union Pacific Railroad (slugs) ^[1]
• UPSZ - United Parcel Service
• UPT - Union Pacific Railroad (fuel tenders) ^[1]
• UPWZ - United Parcel Service
• UPX - Union Pearson Express ^[2]
• UPY - Union Pacific Railroad (yard switchers) ^[1]
• URDX - United States Steel
• URR - Union Railroad (Pittsburgh, Pennsylvania)
• URTX - Union Refrigerator Transit Line; General American Transportation Corporation
• URY - Union Railway of Memphis
• USAX - United States Army
• USBX - GE Rail Services
• USCX - William G. Simon
• USEX - Evans Railcar Leasing Company
• USFU - United States Air Force
• USGX - Union Sugar Company
• USIX - US Industrial Chemicals Company
• USLF - Burlington Northern Railroad
• USLX - Evans Railcar Leasing Company; GE Capital Railcar Services
• USNX - United States Navy
• USPX - US Plastics Corporation
• USRX - U.S. Railways, Inc.
• USSX - United States Steel
• USWX - USA Waste Services
• UTAH - Utah Railway
• UTAX - Utah Transit Authority (formerly assigned to United Transportation, Inc.) ^[3]
• UTBX - Union Tank Car Company
• UTCX - Union Tank Car Company
• UTLX - Union Tank Car Company
• UTPX - Union Texas Petroleum Corporation
• UTR - Union Transportation
• UTTX - Trailer Train Company

References

1. "UP Locomotive Roster" (PDF). Union Pacific Railroad. 1 Jan 2008. Archived from the original (PDF) on March 13, 2007. Retrieved 18 Jun 2008.
2. "UP Express Twitter Account". 18 Aug 2014.
3. "RAILROAD REPORTING MARKS -- U". Valdese, North Carolina: Piedmont and Western Railroad Club. Archived from the original on 23 July 2008. Retrieved 18 Feb 2013.