santa rosa, California

Where Is Area Code 369?

Area code 369 is in California and is assigned as an overlay to the same North Bay region that uses area code 707. That region includes Santa Rosa and much of northwestern California. Santa Rosa is in Sonoma County, about 55 miles north of San Francisco.

Area code 369 serves communities in Sonoma County, Napa County, Solano County, Lake County, Mendocino County, Humboldt County, Del Norte County, and Marin County. Major cities in the 707 and 369 service area include Santa Rosa, Vallejo, Fairfield, Napa, Vacaville, Eureka, and Ukiah. The area also includes smaller communities across the North Coast and inland parts of the North Bay.

This region includes well-known places such as Sonoma County wine country, Napa Valley, and parts of the Pacific coast. It also includes natural landmarks such as redwood forests in Humboldt and Del Norte counties. Santa Rosa itself is the largest city in Sonoma County.

History of Area Code 369

Area code 369 was approved as an overlay for area code 707 in California. The California Public Utilities Commission approved the 707 and 369 overlay in 2022 after continued growth in demand for phone numbers. An overlay adds a new area code to the same geographic region as an existing one.

Area code 707 is much older and dates to 1959, when it was created in a split from area code 415. Because 369 overlays 707, both area codes now serve the same region. The overlay also required 10-digit dialing for local calls in the area.

Key Facts About Area Code 369

• Area code 369 is in California and overlays the same region as area code 707.
• Santa Rosa is one of the best-known cities in the 369 service area and is the county seat of Sonoma County.
• Area code 369 serves the Pacific Time Zone, including Pacific Standard Time and Pacific Daylight Time.
• Area code 369 is an overlay area code, not one of California’s original 1947 area codes.
• The California Public Utilities Commission approved area code 369 as an overlay for 707 in 2022.
• The broader 707 and 369 region includes Santa Rosa, Napa, Vallejo, Fairfield, Vacaville, Eureka, and Ukiah.
• The service area includes notable places such as Napa Valley, Sonoma County wine country, and Redwood National and State Parks region communities in far Northern California.
• The overlay region covers a large part of northwestern California, from inland counties to Pacific coast communities.

Frequently Asked Questions

What state is area code 369 in?

Area code 369 is in California.

What major cities use area code 369?

Major cities in the 369 overlay area include Santa Rosa, Vallejo, Fairfield, Napa, Vacaville, Eureka, and Ukiah.

Is area code 369 a toll-free number?

No. Area code 369 is a geographic area code.