Area code 707 is a North American telephone area code serving the northwestern portion of California, including cities such as Santa Rosa, Napa, Vallejo, and Eureka. It was created in 1959 as one of the original area codes in California and covers a wide range of communities from the San Francisco Bay Area to the Oregon border. If you receive a call from a phone number with area code 707, it likely originates from one of these locations.
