Starting this week, AT&T offers a new prepaid calling option that offers unlimited nationwide calling for three dollars per day. AT&T GoPhone customers will enjoy the flexibility of unlimited calling with charges only applying on days when they make or receive voice calls.

Customers on the new GoPhone Unlimited Calling plan will also be able to use text messaging and data service at the same pay per use rates as all other GoPhone Pay As You Go plans, or customers can add messaging or data packages. Refills are sold at more than 200,000 locations across the U.S.