Five years ago this week… AT&T sneakily unveiled itself as an AirTies customer in a small blogpost promoting its new Smart WiFi extender for multi-AP set-ups, promising increases in coverage of 1,000 square feet and stronger speeds for client devices. AT&T alone offered more influence than the combined force of the other broadband providers in the US using AirTies technologies at the time – Atlantic Broadband, Frontier and Midco. It seemed that Quantenna and Broadcom were both already aware of the deal, which would have explained why they had licensed the proprietary mesh architecture of AirTies. Of course, Faultline had known about Airties’ AT&T coup long before 2018. — AT&T added 280,000 fiber broadband subscribers in Q4 2022, to…