If you'd like to experiment with running your own AS in private address space, connecting to a friendly network of geeks over wireguard tunnels, check out DN42 https://dn42.dev/Home.

It's a great way to explore routing technologies and safely experiment with your own AS, running the same protocols as the "real" Internet, just in private space.

If you do get set up, give me a shout (https://markround.com/dn42), I'd be happy to peer with you if you want to expand beyond the big "autopeer" networks :)