
Shares of U.S. telecom firms dip in premarket trading
AT&T T.N falls 0.7%, Verizon Communications VZ.N off 0.3%, while T-Mobile TMUS.O down 0.5%
Trump Organization - main holding entity of President Donald Trump's business ventures - unveils self-branded mobile network dubbed 'Trump Mobile'
Says 'Mobile' to have numerous features, such as roadside assistance and telemedicine
New mobile venture to have phones made and call centers based in the U.S.
Till last close, T up 23% YTD, while TMUS up 3%, VZ up over 7% in the same period