California’s north-central space at present served by space code 209, together with cities like Lodi, Merced, Modesto, Stockton or Turlock in addition to the Yosemite Nationwide Park, shall be assigned a brand new space code beginning this yr in November.
California makes use of 1+10 digit dialing for each native and toll calls so there shall be no dialing plan adjustments when the brand new space code 350 is launched on November 28, 2022.
See official NANPA announcement and rate center map of the future overlay complex 209/350 (PDF doc).
Go to area code 350 web page for an inventory of cities served, map and different information.