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UAOCT/OLVIA UDDEVALLA UERDINGEN UERPORT
UIG UK IMM UK TEES UKCS 211/26 P8S1
ULA UNDERWAY UNDESIGNATED UNION HALL
UNK UNKNOW UNKNOWN C URK (3)
URK/URK/URK US BAL US BRO US CVP (2)
US GLS>DE WVN US HOU (2) US MAH US MOB
US RCH US SSI USCHS (3) USCHT
USCRP USCRP>DEWVN USHOU USMAH=>GBGRG
USMSY USNFK USPHL UST LUGA (5)
UST LUGA RUSSIA UST-LUGA (2) UST-LUGA RUSSIA UST-LUGA-SPB
USTLUGA RUSSIA UTRECHT (5) UTSIRA FIELD UY MVD