First quarter earnings from the three largest US telcos show growth in service revenues across the board. The impact of Trump’s tariffs is yet to be digested, but Verizon has felt the first sting, losing more than double the number of subscribers it lost in the first quarter of last year. All the economic chaos of the Trump administration means that this will be a testing year for the US telcos, however, in the opening quarter, the news was fairly positive. AT&T beat analysts’ revenue expectations for and hand a windfall of customers from Verizon with its budget friendly tariffs. AT&T added 324,000 postpaid subscribers in total. AT&T’s overall service revenues were $18.9 billion, increasing about 1% from the same…