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."
: Call 611 from your AT&T device (or 800-901-9878) and say "Buy add-ons". how to buy more data at&t
: Automatically adds 10GB every month for $15. How to add it : Log in to your account at AT&T Wireless Add-ons . Select the specific line you want to update. Select Get new add-ons and choose Hotspot data . Follow the prompts to confirm your purchase. If you are on an AT&T monthly plan,