This is not All-Bay Area or All NCS & CCS. The team is chosen from the BANG circulation area, mainly the East Bay, SJ, Peninsula and I believe just the SF WCAL teams.
https://www.eastbaytimes.com/2019/03/20/boys-basketball-meet-all-bay-area-news-group-team/
https://www.eastbaytimes.com/2019/03/20/boys-basketball-meet-all-bay-area-news-group-team/