Boost Mobile by UP4L is located on Euclid Ave/Holt Blvd, Ontario CA. We are a Boost Mobile / Virgin Mobile authorized retailer specializing in pre-paid monthly plans, no credit checks, no deposits, unlimited monthly cell phone plans, 4G LTE Unlimited Plans, Internet to go devices, and the best cell phones out in the market. With plans starting at $30/month to serve all your needs and financing available we will make sure you walk out with the device to best suit your needs. We service, sell and take all pre-paid cell phone payments in store. We repair cell phones, iPads, iPhones, Digitizers, LCD Screens, and more. We buy used handsets. We accept all competitors coupons and offers and we match competitor prices. Short on cash, don't worry because we Finance! Up to 90 Days! We service the city of Ontario, Chino, Chino Hills, Montclair, Pomona, Rancho Cucamonga, Fontana, San Dimas, East Vale, Mira Loma, and La Verne. Hope to see you all soon! :-)