Area code 707 is serving as telephone area code for areas of Bay Area - California. Code 707 was created on 1st March 1959 when it got split from area code 415. The area is not split yet - retaining same boundary lines since its creation. However the Dixon Area moved from code 916 to code 707 during split of area code 530 on 1st November, 1997.
Other codes for different regions sharing the boundaries of Bay Area with area 707 are:
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