AT&T on Thursday said it was buying Wi-Fi provider Wayport in a bid to significantly expand the footprint of AT&T-owned hotspots. The move gives the carrier a total of almost 20,000 access points within the US that include McDonald's restaurants as well as Four Seasons, Marriott Vacation Club and Wyndham hotels. It also boosts AT&T's presence outside of the US to over 80,000 total connections.