Crossword Genius

Spectrum or Xfinity, for short (3)

Ross

I believe the answer is:

isp

(Another definition for isp that I've seen is " What's needed to surf".)

I've seen this clue in The New York Times.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.