AT&T recently ran a promo that offered double data on a select number of its Mobile Share Value plans. As a follow up, the carrier will soon start extending an extra 5GB of data to customers with 10GB plans at no additional charge. The offer starts tomorrow and runs for a “limited time.”

AT&T hasn’t clarified how long this promo will be available, so you’ll want to move quickly to take advantage of this deal. New and existing customers can add the additional 5GB of data to their Mobile Share plan by visiting att.com or using the carrier’s myAT&T mobile app.

In addition to extra data, Ma Bell’s share plan ships with unlimited talk and text if you happen to care about that sort of thing.

(via AT&T)