What is the problem you're trying to solve? As Orange Blossom says, alternatives depend on where you live. Are you looking for lower prices, better reliability, better support or what? Personally I'm pretty happy with Comcast, but the quality of their service seems to vary widely even in a given city. A lot of folks in my area have gone with AT&T mainly for price. I have a friend with Uverse who gets very good support with them too. Unfortunately with Comcast's support you often get people in the Philippines who don't know their rear ends from a hole in the ground, so I have found problem resolution to be painful sometimes. Fortunately though I've had very few problems to worry about, and I live a 5 minute drive to the local Xfinity store. Other alternatives are Earthlink, Time Warner, Dish, Cox and AOL. If you want a 4G service, there're always the cell providers.