AT&T today announced its own unlimited family plan meant to compete with the likes of those introduced by Verizon Wireless, T-Mobile, and Sprint earlier this week. Beginning Feb. 17, customers will be able to sign up for a wireless-only AT&T Unlimited Plan that AT&T says will cost $180 for a family of four. The package includes four lines with unlimited data, talk, and text. The first line costs $100 and each additional line costs $40. The four-person plan will start at the cost of $220 per month ($100 + 3x$40). The $180 monthly price reflects a $40 credit for the fourth line, which won't be applied to the account for several months. Critically, the new AT&T Unlimited Plan does not include tethering or mobile hotspot at all. AT&T says customers who wish to use those features should select is Mobile Share Advantage plan instead. The Unlimited Plan includes its Stream Saver by default, which downgrades video quality to 480p resolution to cut down on data use. Customers can turn Stream Saver off at no additional cost to stream HD video. Further, AT&T may throttle data speeds once customers exceed 22 GB of data usage in a given month. The AT&T Unlimited Plan also allows customers to make unlimited calls from the U.S. to Canada and Mexico, roam at no extra cost in Canada and Mexico, and send unlimited texts to more than 120 other countries. AT&T's plan costs the same as Verizon's for four lines at $180 per month. AT&T's separate unlimited plan for its DirecTV customers remains in place.


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