 WASHINGTON , July 27, 2021 PRNewswire -- Cogent Communications Holdings, Inc.Cogent NASDAQ: CCOI, one of the largest Internet service providers in the world, today announced that Dave Schaeffer, Cogents Chief Executive Officer, and Sean Wallace, Cogents Chief Financial Officer, will participate in the following conferences: The KeyBanc 22nd Annual Technology Leadership Forum which is being held virtually. Dave Schaeffer and Sean Wallace will be presenting on Monday, August 9, 2021 at 12:40 p.m. 