1 - don't have a good answer here 2 - a service like this doesn't rely on much fiber at all, outside of the point(s) where the mesh connects to the rest of the

1 - don't have a good answer here 2 - a service like this doesn't rely on much fiber at all, outside of the point(s) where the mesh connects to the rest of the internet. Its almost all point-to-point wireless, with the points eventually converging back on the base stations at datacenters. 3 - the common term for this kind of facility is a "carrier hotel" or "ix" (like internet exchange). A carrier hotel is usually a dedicated-purpose facility where lots of different providers connect their networks together specifically for that purpose, but, hypothetically even a reasonably well-connected commercial datacenter will have at least a couple of carrier connections on site who could be used to create a mesh network base.