List of T-Mobile Stores in Union City, CA Outlet Note Regular Brands T-Mobile California Union City Rating 4.8 based on 88 votes Official Outlet www.t-mobile.com/shop.aspx Official Website http://www.t-mobile.com/ Products Accessories Laptop Phones Smartphones Tablet Network Wireless Broadband NameAddressPhone Name/Address/Phone T-Mobile outlet - Union City 1791 Decoto Rd (510) 675-0000 T-Mobile outlet - Union City 31350 Courthouse Dr (510) 441-2130 T-Mobile outlet - Union City 30600 Dyer St (510) 475-5915 People Also Viewed