An except of the statement from AT&T spokesperson to The Verge reads as follows:
Based on recent reports, we're no longer exchanging new Note 7s at this time, pending further investigation of these reported incidents,. We still encourage customers with a recalled Note 7 to visit an AT&T location to exchange that device for another Samsung smartphone or other smartphone of their choice
The discountination of the sales of the Galaxy Note7 comes after days after all major four US carriers began allowing Galaxy Note7 owners return their devices in exchange for another smartphone of their choice.
T-Mobile has joined AT&T in temporarily halting the sales of the Galaxy Note7. T-Mobile subscribers who purchased their Galaxy Note7 from T-Mobile can return their Galaxy Note7 and accessories for a full refund and a phone swap. They would also be allowed to keep any Gear Fit2, microSD card or Netflix subscription that was bundled with the purchase of the Galaxy Note7 in addition they would receive a $25 credit on their bill.
Verizon is also halting sales of the Galaxy Note7, Subscribers who already own a unit can swap their devices for another smartphone.