This marks the lowest monthly rate for an iPhone in an increasingly competitive environment. The carrier also confirmed it would sell the Apple Watch on Friday.
The carrier's customers can now take advantage of unlimited data and texting and 20-cents per minute phone calls across more countries.
CNET's tech advice columnist Marguerite Reardon tries to help a confused AT&T wireless customer figure out the best service plan for him and his wife.
But Sprint finally ceded its position as the nation's third-largest wireless carrier as T-Mobile edged ahead of it on stronger growth.
The carrier continues its torrid pace of subscriber growth amid stiff competition in the wireless business.
AT&T tops expectations for its second-quarter earnings, and manages to grow its base despite losing core phone customers.
But the nation's largest wireless did post a profit for the second quarter and phone subscriber growth that topped expectations.
For the ninth quarter in a row, T-Mobile has added more than 1 million net total customers. The question remains: will that be enough to take the No. 3 spot?
But there's a catch: You have to commit to a new smartphone as part of the new upgrade program. Also, only a select number of flagship phones are available for an upgrade.
The Uncarrier has the most to win or lose in next year's spectrum auction, including whether it has a chance to be a true competitor to Verizon Wireless and AT&T.