FCC Chairman Ajit Pai claimed the "Obama FCC" treated the internet like "a water company or Amtrak."
The Federal Communications Commission accused Sprint of fraudulently obtaining tens of millions of dollars in subsidies from the government's Lifeline program.
Between May 8 and May 12 it received more than 2.1 million comments. The system came crashing down.
His statement came as senators mulled over a last-ditch effort to save the abolished regulations.
FCC Chairman Ajit Pai is a Harvard grad and former Verizon lawyer who just helped repeal net neutrality rules.
Pai appeared in a video wielding a fidget spinner and performing the Harlem Shake just one day before the decisive net neutrality vote.
Campaigners are "extremely skeptical" about the FCC's claims that hackers knocked out the website.
The television host called upon viewers to flood the FCC with comments on its plan to reverse rules that prevent data discrimination.
Trump's deregulatory push could target rules that prevent companies from owning too many media properties.
Ajit Pai, Trump's pick for United States Federal Communications Commission, has opposed net neutrality in the past.