AOL or MSN (3)
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 Wall Street Journal and the King Feature Syndicate.
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.