Tech AT&T claims completion of a world’s ‘first’ 5G connection. Here’s why it matters to you October 26, 2018October 29, 2018Edward C. Baig, USA TODAYComments Off on AT&T claims completion of a world’s ‘first’ 5G connection. Here’s why it matters to you AT&T calls the news that it has successfully completed the "world's first millimeter waver" 5G connection to a "standards-based hotspot "seminal."