You can have more than one add-on, but each add-on has a maximum balance. You can’t buy any other add-ons if you go over these limits:
- Data: Up to 15GB (Wait to add more data until you use all data included in your current plan. That way, you avoid buying more than you need.)
- International Long Distance: Up to 750 minutes
FYI: Data balances for AT&T Prepaid products aren't refundable. Want to check your balances?
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