If you need more high-speed data before the end of your bill period, you can change to another plan. Learn about
AT&T unlimited plans.
For data plans with overage charges
- Data usage is rounded up to the nearest MB for all devices on your plan.
- The shared usage may be more than your monthly plan allotment (plus any other data allotments, such as Rollover Data). If so, you’ll be automatically given extra data. This will be charged as overage data in accordance with your rate plan.
- Overage data must be used in the billing period it’s provided and doesn’t roll over. Please see your Customer Service Summary to view your overage charge rate.