UAM — YIGO, GU

UBG — NEWBERG, OR

UC — UNION CITY, TN

UCA — UTICA, NY

UCP — NEW CASTLE, PA

UG — CHICAGO/WAUKEGAN, IL

UGS — ATHENS/ALBANY, OH

UI — QUINCY, IL

UIM — QUITMAN, TX

UIN — QUINCY, IL

UJM — HELENA/WEST HELENA, AR

UKK — WAINWRIGHT, AK

UKN — WAUKON, IA

UKS — KOSRAE ISLAND, MICRONESIA, FED STATES OF

UKW — BOWIE, TX

ULL — SAVOONGA, AK

UMB — MILLEDGEVILLE, GA

UNK — UNALAKLEET, AK

UNZ — AGANA, GU

UOT — UNION, SC

UPP — HAWI, HI

UQN — VIDALIA, GA

UQS — NUIQSUT, AK

URH — DURANT, OK

UTI — ST GEORGE, UT

UTO — UTOPIA CREEK, AK

UTX — JUPITER, FL

UU — CORINTH, MS

UUC — WINNEMUCCA, NV

UV — OXFORD, MS

UV — MARTINSVILLE, VA

UWL — NEW CASTLE, IN

UZ — ROCK HILL, SC