List of T-Mobile Stores in Dekalb, IL Outlet Note Regular Brands T-Mobile Illinois Dekalb 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 - Dekalb 2300 Sycamore Rd (815) 758-6225 T-Mobile outlet - Dekalb 2300 Sycamore Rd (815) 758-6225 T-Mobile outlet - Dekalb 2587 Sycamore Rd (815) 754-4146 T-Mobile outlet - Dekalb 2587 Sycamore Rd (815) 754-4146 People Also Viewed