Benicia, California

Where Is Area Code 707?

Area code 707 is in northern California. It serves a large part of the North Coast and North Bay, including Benicia in Solano County. The area code reaches from communities near the San Francisco Bay north to the Oregon border.

Area code 707 covers major cities and communities such as Santa Rosa, Vallejo, Fairfield, Vacaville, Napa, Benicia, Petaluma, Rohnert Park, and Eureka. It serves counties that include Solano, Napa, Sonoma, Mendocino, Humboldt, and Lake. It also covers smaller communities across Del Norte and Marin counties.

The region includes well-known features such as the Napa Valley wine region, parts of the Pacific coastline, and Humboldt Bay. It also includes redwood country in far northern California. In Benicia, the area sits along the Carquinez Strait, which connects Suisun Bay and San Pablo Bay.

History of Area Code 707

Area code 707 was created in 1959. It was split from area code 415 as telephone demand grew in northern California.

Area code 707 later changed again in 1999, when part of its territory moved to the new 530 area code. More recently, the California Public Utilities Commission approved area code 369 as an overlay for 707 in 2022. Ten-digit dialing became necessary in the 707 region as a result of that overlay.

Key Facts About Area Code 707

• Area code 707 is in California and includes Benicia, Santa Rosa, Vallejo, Fairfield, Napa, and Eureka.
• Area code 707 uses the Pacific Time Zone. It follows Pacific Standard Time and Pacific Daylight Time.
• Area code 707 was created in 1959 as a split from area code 415.
• Area code 707 lost part of its coverage area in 1999, when area code 530 was created.
• Area code 369 is the overlay for area code 707, and the California Public Utilities Commission approved that overlay in 2022.
• Area code 707 serves parts of the North Bay, Wine Country, the North Coast, and the far North Coast of California.
• Notable places in the 707 region include Napa Valley, Humboldt Bay, and California redwood areas in Humboldt and Del Norte counties.
• Benicia, one of the communities in area code 707, is in Solano County along the Carquinez Strait.

Frequently Asked Questions

What state is area code 707 in?

Area code 707 is in California.

What major cities use area code 707?

Major cities in area code 707 include Santa Rosa, Vallejo, Fairfield, Vacaville, Napa, Benicia, Petaluma, Rohnert Park, and Eureka.

Is area code 707 a toll-free number?

No. Area code 707 is a geographic area code.