If I recall right, Dane answered this in a different thread and said underground chances are pretty much zero right now not economical. overhead if much cheaper to do. but if I am wrong i am sure he will correct this.
Yes, our deployment focus today is on continuing to scale up aerial construction.
But we are putting R&D and production efforts into underground, operating three directional drilling crews on a daily basis, building new fiber networks to schools, business parks, and other custom projects, and those lessons will serve residential too. (Our Brentwood fiber deployment incorporated over two years worth of underground HDD construction.) And today we are also seeking out municipalities where we can do micro and nano-trench process testing. So, underground service is a part of our plans, but is not yet at production scale the way that aerial is today.