ANX is what is known in the Internet industry as a virtual private network, or VPN.
A VPN is a communications system that makes use of the same physical infrastructure as the public Internet. But the VPN employs security measures to make sure that only authorized users can access the network.
If you think of the public Internet as the information superhighway, then ANX has its own speed lane on that data interstate.
That ANX speed lane is also walled off from other traffic. It has its own exclusive on-ramps and off-ramps. And as traffic builds in the ANX speed lanes, cyberspace construction crews rush out to the highway to build more lanes and keep the flow of data speeding along.