Most people don't know this either. If you ask they will answer 'AT&T ' or the government or some other centralized entity.

For those who don't know: The Internet is a real life functioning anarchy. This doesn't mean it's complete chaos or that there are no rules. There are rules, but not laws for the most part. Rules are enforced by individual Internet companies based on what is best for them and the network. Every router, server, switch and wire is owned by a private company and they interact based on a combination of public protocols (TCP/IP) and private peering agreements. This works mostly because people are free to leave or switch providers/partners at any time. It does rely on being able to fall back on contract law and courts, however, so it's not a pure anarchy. It is completely decentralized, though.