I live in San Carlos. I signed up for pre-order 2 years ago. Finally fiber line was put on the poles last December, and I got the email to schedule for installation. Sonic people were nice to let me know service cannot be connected to my house. My guess is, my house is in a small community of 11 homes (at least half of them waiting for Sonic to be available) built in 2018 with utilities underground and Sonic cannot drop a line from the pole to my house. So my pre-order was cancelled.
Having the line passing right next to my house and not being able to use it is really frustrating.