T-Mobile

Welcome to the AT&T kiosk at Costco, conveniently located near the 10 freeway and surrounded by warehouses. Our kiosk is within Costco's Business Center, on the left-hand side of the main aisle next to the industrial refrigerators. Our friendly staff is here to assist you, whether you're a local business owner, hotel guest, or Starbucks customer. We offer the latest AT&T products and personalized services to make your experience convenient and enjoyable. Visit us today for quality communication and convenient shopping.

Wireless Zone, Verizon Authorized Retailer, Ontario, is your one stop shop for all of your phone and wireless service needs. We offer the latest devices with Verizon network coverage, including 5G service, for both consumers and businesses. Come to Wireless Zone for smartphones, tablets, Verizon home internet, tech accessories, connected devices, award-winning customer service, and more. Visit us at 4265 E Guasti Rd.

Located inside Sam's Club, Experience the power of T-Mobile's 5G network by switching to T-Mobile. Staffed by experienced T-Mobile employees, we offer exclusive benefits for Sam's Club members. Membership Required.