Nhóm U
| UBE,Japan |
| UFA,Russia |
| UJUNG PANDANG,Indonesia |
| ULAAN BAATAR,Mongolia |
| ULAN UDE,Russia |
| ULJANOVSK,Russia |
| ULM,Germany |
| ULSAN,South Korea |
| UM-ALQSAR,Iran |
| UMM QASR,Iraq |
| URALSK,Kazakhstan |
| URUMQI,Xinjiang Province |
| USHUAIA,Argentina |
| USSURYISK,Russia |
| UST-KAMENOGORSK,Kazakhstan |