The settlement affects up to 3 million current and former subscribers, most of whom will have to file a claim to receive an average value of $3. Consumers could also get up to $25 in benefits like calling cards, free air time or discount coupons for phone accessories from the settlement.

Denver District Judge Herbert Stern awarded the settlement when he dismissed the case two weeks ago.

AT&T Wireless Services Inc. has denied any wrongdoing involving so-called out-of-cycle bills for calls that subscribers made on other carriers' networks.

Customers alleged that AT&T Wireless used delayed billing, which charged customers for roaming calls they wouldn't have incurred had the calls been billed in the month they were placed.