A:Answer Hi Lena, A great choice if you're looking for a replacement. Generally, if you already have an active account with Verizon, Sprint, or AT&T, then you won't need to set up a new account. However, T-Mobile is not listed as one of the supported carriers for the Activate Now discount. You can check this link for more info: https://www.bestbuy.com/wireless/transaction-types/render/carriers?numberOfPayments=1&purchaseType=FULL_SRP&skuId=6441176 - Mike