Sept 7 (Reuters) - T-Mobile US Inc (TMUS.O), opens new tab is doubling down on 5G services after it struck a deal on Wednesday to sell its wireline business to Cogent Communications Holdings Inc ...

WASHINGTON, Aug. 24, 2017 /PRNewswire/ -- Cogent Communications Holdings, Inc. (NASDAQ: CCOI), one of the largest Internet service providers in the world, today announced that Dave Schaeffer ...