some of them are expansive
Yes, it is. It can mean vast, expansive, huge, or enormous (very large).
The prairie was very expansive, stretching for miles.
Expansive Heart was created on 1994-07-12.
To be in or out of a network is to be in or out of service/connection.
Japan is filled with buses. The buses act as a connector between the trains and automobile that finally connects Japan's expansive public transportation network which is the best in the world.
The Roman empire, if that's what you mean, was extremely expansive. Check the 'Related Links' below for images.
Do you mean Transatlantic network?
What does it mean Network Busy when I call over to England
EXPANSIVE
expansive
...expansive.