Tello.com has for New Customers/New Lines: 3-Month Tello Mobile Prepaid Plan: 1GB LTE + Unlimited Talk/Text on sale for $14.25 (billed at $4.25 for the first month, then $5/month for months 2-3) when you apply coupon code 15OFFAFF in cart.
Includes (per month):1GB LTE DataUnlimited 2G Data (once LTE has been used)Unlimited TalkUnlimited TextCalls to Canada, Mexico, and China are included.Compatible Devices:Bring Your Own Device: click here to check your phone's device ID (MEID)Compatible Sprint or supported unlocked smartphone required
or Purchase: click here to shop the Tello Store