Cox and Comcast are two different companies. Both operate in some of the same markets and may compete for customers, but they are independent of each other. Comcast Internet is known as Xfinity.

Both Comcast and Cox are primarily cable ISPs, using coaxial cable to provide internet service. Xfinity offers a fiber plan in select areas.

Both providers charge extra for exceeding data caps but Cox offers a slightly higher data cap compared to Xfinity. However, Xfinity's unlimited data option is cheaper.

Both Xfinity and Cox offer 12-month contracts and month-to-month options. Cox usually has significant price hikes after the first 12 months.

Both providers charge for professional installation but Cox charges more than twice as much as Xfinity. However, other savings with Cox plans can help offset some of this difference.

Both Xfinity and Cox have extensive coverage areas. Cox is currently available in 18 states and Comcast Xfinity is available in 44 states, including most of the same ones as Cox. Coverage may not be available in all areas of each state. It's always a good idea to check with Cox and Xfinity directly to confirm service availability at your address.