AT&T has made a few improvements to their Free2Go prepaid program that makes it more appealing than ever. First, they have reverted to a 90 day length for all prepaid cards, which is what used to be offered before AT&T had a 45 day lifetime on each value. This means that a $10 (the lowest amount, 40 minutes on the new flat-rate plan) refill can cost only $3.33 a month.
The second is that the $100 card (666 minutes on the new flat-rate plan) now lasts an entire year. To take advantage of this new plan and card lifetime if you are an existing Free2Go customer, you may have to call AT&T Prepaid Customer Care and ask to be put on the new rate plan.