Prepaid users can manually add data "buckets" that last until the next renewal period. : 5GB for $10 : Available for monthly prepaid plans.
If you are on an AT&T monthly plan, you can add high-speed data for your mobile hotspot or switch to a plan with more "priority data." how to buy more data at&t
Prices and data allotments are based on AT&T's latest Unlimited Data Plans and Prepaid Data Plans. Manage Data Only Plan - AT&T Wireless Customer Support Prepaid users can manually add data "buckets" that