To buy extra data on AT&T, you can purchase an through your online account or the myAT&T app . The process and pricing depend on whether you have a postpaid or prepaid plan. How to Buy Extra Data
You can manage your data additions directly through AT&T Wireless Support : to your myAT&T account or use the myAT&T app . how to buy extra data on at&t
AT&T recently updated its "Unlimited Your Way" lineup with higher data thresholds and streamlined naming. To buy extra data on AT&T, you can
$15 for 10GB of high-speed hotspot data. This is available as a one-time purchase or a monthly recurring feature. To buy extra data on AT&T
If you exceed your home internet cap, AT&T automatically adds data in 50GB increments for $10. AT&T Data Plan Review