The Communications Workers of America are seeking to jointly organize employees from Verizon, AT&T, and T-Mobil in a new association called “Wireless Workers United”. The initiative is the first nation-wide network of both union and non-union employees working together for greater job security as well as quality customer service. Workers from the three companies will stand in solidarity at a rally in downtown Orlando as part of the association’s launch. AT&T and Verizon employ a significant number of unionized employees, but T-Mobil, on the other hand, saw the number of represented workers fall from 30 to 0 in 2016 during the same period that the company created it’s own worker group, called T-Voice. T-Voice was subsequently under investigation by the NLRB for suspicion of being an employer-controlled union. The launch of Wireless Workers United is just the latest in a string of recent efforts by the CWA aimed at boosting the salaries and benefits of unionized wireless employees across the country.
See "Verizon, AT&T and T-Mobile employees to jointly organize under CWA’s ‘Wireless Workers United’ group", Mike Dano, Fierce Wireless, January 31, 2018