You can check the Aeropostale gift card balance by first going to the Gift Card Balance page. Once there, type in the gift card number and Giftcard Pin to check the remaining balance. You can check Aeropostale gift card balance online on our website or call Aeropostale at 1-877-289-2376. You can also visit any Aeropostale store and enquire a cashier to check the balance for you.