it is mainly the web that has been commercialized. Getting acces to the internet (AKA, getting an IP block and routes to connect to others) has always been sor

it is mainly the web that has been commercialized. Getting acces to the internet (AKA, getting an IP block and routes to connect to others) has always been sort of centralized, mainly because ip blocks need to be handed out from a single source of truth to prevent ip address collisions. Still, the peer to peer nature of interconnecting still exists, there is no hierachical information source which defines routes across the internet. This is all decentralized and done by doing peering between parties with BGP (And other routing protocols). Doing this yourself is possible, although rather hard and niche for a consumer. But getting an AS number is doable, and getting an IPV6 block is even easier. IPv4 is hard to come by though..