Sony is already selling the Xperia X, X Performance, and XA in the US unlocked - so it's absolutely no surprise that the latest member of the X family would have the same fate. Starting today, you can purchase the Sony Xperia XA Ultra from Amazon, Best Buy, or B&H. The recommended retail price is $369.99, and for that amount you get a handset that can be used with any GSM carrier such as AT&T or T-Mobile. The Xperia XA Ultra has a 6-inch 1080p touchscreen, a 21.5 MP rear camera with phase detection autofocus and LED flash, a 16 MP selfie snapper with OIS and LED flash, 3GB of RAM, 16GB...
Source: http://www.gsmarena.com/unlocked_sony_xperia_xa_ultra_goes_on_sale_in_the_us_for_36999-news-19642.php