It may depend on where you are. gigabit speeds and fiber aren't available in my region. The places that have it are not routed to the upstream providers the sam

It may depend on where you are. gigabit speeds and fiber aren't available in my region. The places that have it are not routed to the upstream providers the same way my region is. ISPs that have many locations around the US are routed differently to the broader Internet and can have different footprints in different locations.