McAdam told Bloomberg at their New York office, "If Brian [Roberts] came knocking on the door, I'd have a discussion with him about it."
"Given what I know about architecture, financial requirement, cultural fit, there's never a dream deal," McAdam said.
There's an M&A arms race going on in the telecom industry. Verizon rival AT&T, which acquired DirecTV in 2015, is trying to get government approval for its $85 deal to buy Time Warner by the end of the year.
(Disclosure: Comcast is the owner of NBCUniversal, the parent company of CNBC and CNBC.com.)
Watch: Verizon & Corning agree to deal