At&T 5G Coverage Map Oregon. Recently, 5g has started taking the world by storm. At&t's 5g coverage spans a modest 29.52% of the united states. This map represents the coverage of at&t mobility 2g, 3g, 4g and 5g mobile network in . At&t has 5g coverage for 255 million people with additional mmwave capacity in parts of 42 cities across the country. Android central nearly seven months after rolling out its 5g netw. At&t mobility cellular data network in portland, oregon, united states. This map displays approximate outdoor coverage.