| Prefix | Proof | Name | Origin | Owner | Web | Image |
|---|---|---|---|---|---|---|
| UAAU |  | BG | Möbius Grouppe | mobius-grouppe.com/ |  | |
| UACU |  | uasc | DE | Hapag Lloyd AG. | www.hapag-lloyd.com/ |  |
| UAEU | | uasc | DE | Hapag Lloyd AG. | www.hapag-lloyd.com/ |  |
| UAFU | | uafl | MU | United Africa Feeder Line | www.uaflshipping.com/ |  |
| UAKU | | US | Alara Logistics | alaralogistics.com/ | | |
| UASU | | uasc | DE | Hapag Lloyd AG. | www.hapag-lloyd.com/ |  |
| UBBU | | interbulk | NL | Den Hartogh Dry Bulk Logistics | www.denhartogh.com/ |  |
| UBEU | JP | UBE Corporation | www.ube.co.jp/ |  | ||
| UBKU | JP | UBE Corporation | www.ube.co.jp/ |  | ||
| UCGU | | RU | Ucont LLC. | ucontgroup.ru/ | | |
| UCHU | ucontainer logistics | CN | Ucontainer Logistics Co. Ltd. | www.ucontainer-chemlog.com/ |  | |
| UCLU | ucl | SG | Ueno Container Logistics | www.uenologistics.com/ |  | |
| UCLU | NZ | Container Co. | containerco.co.nz/ |  | ||
| UCSU | | GB | Universal Container Services Ltd. | www.universal-containers.com/ |  | |
| UENU | | JP | U-EN Corporation | www.container-ichiba.jp/ |  | |
| UESU | | ues | CN | UES International (HK) Holdings Ltd. | www.ueshk.com/ |  |
| UETU | | ues | HK | UES International (HK) Holdings Ltd. | www.ueshk.com/ |  |
| UGCU | | uniper | DE | Uniper Global Commodities SE. | www.uniper.energy/ |  |
| UGLU | | HK | Uniglobal Shipping Co., Ltd. | | ||
| UGMU | | uniglory | PA | Greencompass Marine S.A. | www.evergreen-line.com/ |  |
| UGPU | | blueline | RU | Roza Mira LLC. | rozamira.ru/ |  |
| UGSU | | PA | Ucak Shipping Co. |  | ||
| UHBU | | CN | Guangzhou HB General Trading Ltd. | www.hb.am/ | | |
| UHCU | | union helium co. ltd | JP | Union Helium Co., Ltd. |  | |
| UHLU | | GB | Unit Hire Ltd. | unithire.co.uk/ |  | |
| UIFU | HK | Unitex International Forwarding Ltd. | www.unitexlogistics.com/ |  | ||
| UKOU | miyabe | JP | Miyabe-Unyu Co.,Ltd. | miyabeunyu.xsrv.jp/ |  | |
| ULCU | | unico | KR | Unico Logistics Co., Ltd. | www.unicologx.com/ |  |
| ULTU | | ultrafreezer | KR | Ace Engineering & Co., Ltd. | www.acecontainer.com/ |  |
| UMAU | | SG | United Microelectronics Corporation (Singapore branch) | www.umc.com/ | | |
| UMAU | uma | AU | U-Move Australia | u-move.com.au/ |  | |
| UMGU |  | umg | UA | UMG RT Gas LLC. | umgi.com/ |  |
| UMJU | | DE | AS Containerhandel & Service GmbH. | www.as-containerhandel.de/ | | |
| UMLU | | ultramar | RU | Smart Bulk Terminal LLC. | www.ultramar.ru/ |  |
| UMPE | JP | Ube-Maruzen Polyethylene Co., Ltd. | www.ube.com/ |  | ||
| UMPU | JP | Ube-Maruzen Polyethylene Co., Ltd. | www.ube.com/ |  | ||
| UMTU | ube | JP | Ube Material Industries Ltd. | www.ubematerial.com/ |  | |
| UMTU | | ultramar | RU | Ultramar LLC. | www.ultramar.ru/ |  |
| UMXU | | umax | US | Union Pacific / CSX Intermodal | www.up.com/customers/premium/umax/index.htm |  |
| UNCU | | PL | Uni-Logistics Sp. z.o.o. | unilog.eu/ |  | |
| UNDU | | unitainer | DE | Unitainer Trading GmbH. | www.unitainer.de/ |  |
| UNFU | | AE | Unifeeder Fzco. | www.unifeeder.com/ | | |
| UNIU | | unitas | BM | Unitas Containers Ltd. | www.unitas.bm/ |  |
| UNKU | unik | JP | Uni-X Engineering Co., Ltd | www.unix-engineering.co.jp/ |  | |
| UNLU | | DE | Unitainer Leasing GmbH. | www.unitainerleasing.com/ |  | |
| UNOU | | uniteam | NO | Algeco Norway A/S. | www.algeco.no/ |  |
| UNRU | | unitas | BM | Unitas Containers Ltd. | www.unitas.bm/ |  |
| UNSU | | uniocean | GB | UniOcean Lines | unioceanlines.com/ |  |
| UNSU | US | United Nations Organisation | www.un.org/ |  | ||
| UNSU | u-need storage | CA | U-Need Storage | www.uneedstorage.ca/ |  | |
| UNTU | | RU | Tetris LLC. | tt3s.ru/ | | |
| UNXU | | unitas | BM | Unitas Containers Ltd. | www.unitas.bm/ |  |
| UOLU | |  | ||||
| UOQU | JP |  | ||||
| UPAC | you pack | AU | You Pack Removals | www.youpack.com.au/ |  | |
| UPAU | | ultra pure chemicals | GB | CMC Materials UPC Ltd. |  | |
| UPFU | US | Union Pacific Railroad Co. | www.up.com/ |  | ||
| UPHU | | hub group | US | Hub Group Inc. | www.hubgroup.com/ |  |
| UPLU | | upline | CZ | Upline CZ. S.r.o. | www.upline.cz/ |  |
| UPRU | arrowedge | US | Union Pacific Railroad Co. | www.up.com/ |  | |
| UPSU | | PL | United Multimodal Services Sp. z.o.o. | www.united-multimodal.com/ | | |
| UPSU | ups | US | United Parcel Service | www.ups.com/ |  | |
| UPTU | bulktainer | US | Union Pacific Railroad Co. | www.up.com/ |  | |
| UPUU | union pacific | US | Union Pacific Railroad Co. | www.up.com/ |  | |
| UREU | | GB | Urenco Ltd. | www.urenco.com/ | | |
| URFU | | RU | Eurotrans Logistics LLC. | www.etlog.ru/ | | |
| USAU | | US | United States Army | www.sddc.army.mil/ |  | |
| USCU | US |  | ||||
| USFU | | US | United States Air Force | www.airforce.com/ |  | |
| USGU | | US | U.S. Army Surface Deployment & Distribution Command | www.sddc.army.mil | | |
| USIU | united shippers | US | United Shippers Inc. | united-shippers.com/ |  | |
| USLU | | usl | AE | Universal Star Shipping Line LLC. | universalline.ae/ |  |
| USMU | | US | United States Marine Corps | www.marines.mil/ |  | |
| USNU | | US | United States Navy | www.navy.mil/ |  | |
| USPU | | exsif | US | Exsif Worldwide Inc. | www.exsif.com/ |  |
| UTAU | | UA | UTK Himalyans LLC. | utk.in.ua/ | | |
| UTCU | | stolt | BM | Stolt Tank Containers Leasing Ltd. | www.stolt-nielsen.com/ |  |
| UTKU | | US | Unitek Solvent Services Inc. | www.uniteksolvent.com/ | | |
| UTLU | universal | US | Universal Truckload Services Inc. | www.universallogistics.com/ |  | |
| UTMU | | CY | Unitimber Ltd. | | ||
| UTOU | | FR | Electricite de France | www.edf.fr/ | | |
| UTSU | | uts | NL | UTS International | www.utsinternational.nl/ |  |
| UTTU | | den hartogh | NL | Den Hartogh Liquid Logistics bv. | www.denhartogh.com/ |  |
| UTVU | | GB | Unitrove Group Ltd. | www.unitrove.com/ | | |
| UTXU | | TH | U Tech Express Co., Ltd. | | ||
| UTYU | | GB | Unitrove Group Ltd. | www.unitrove.com/ | | |
| UUUU | | elbtainer | DE | Containerbasis GmbH. | elbtainer.com/ |  |
| UWAU | | CN | United Win Logistics Co., Ltd. | www.united-win.com/ | | |
| UWLU | uwl | US | UWL Inc. | www.shipuwl.com/ |  | |
| UXEU | unix-e | JP | Unix Engineering Co., Ltd. | www.unix-engineering.co.jp/ |  | |
| UXXU | | ues | CN | UES International (HK) Holdings Ltd. | www.ueshk.com/ |  |
| UZUU | | liski | UA | State Administration of Railway Transport of Ukraine | liski.ua/ |  |
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