[fulafel]

I was referring to "public network".

(Though that WP page seems also to have self-coined the "private network" phrase and I don't think it's an estabilished term in this meaning. The first and second references off the leading paragraph talk about "private internets" and "unique local addresses" respectively).

[vasachi]

"Public network" can mean many things, but in context of IP addresses it usually means a network, that uses a globally addressable IP range. Now, that doesn't mean that the network is globally accessible. It can be tightly firewalled.