where does the area code 707 come from
Area code 707 is a California telephone area code that was split from area code 916 on March 1, 1959. It covers the northwestern portion of the state of California. It serves part of the northern San Francisco Bay Area, as well as the North Coast and the northwestern portion of the state. Major cities in the area code include Napa, Sebastopol, Vallejo, Benicia, Fairfield, Santa Rosa, Windsor, Healdsburg, Rohnert Park, Petaluma, Fort Bragg, Crescent City, Eureka, Clearlake, Vacaville, Ukiah, and northwestern California.