California · Pacific Time
707 Area Code
Area code 707 is in California, serving north Bay wine country and the North Coast of California, from Vallejo to Crescent City. It is in the Pacific Time zone. It shares its territory with overlay code 369, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 707 area code?
707 is a California area code covering north Bay wine country and the North Coast of California, from Vallejo to Crescent City. In the wider directory it sits in the West region.
Cities in the 707 area code
- Santa Rosa
- Vallejo
- Fairfield
- Vacaville
- Napa
- Petaluma
- Rohnert Park
- Eureka
- Benicia
- Ukiah
- Healdsburg
- Arcata
- Crescent City
Counties served by 707
Sonoma County, Solano County, Napa County, Humboldt County, Mendocino County, Lake County and Del Norte County.
707 overlay codes and dialing
The 707 territory is covered by an overlay of 2 area codes: 369, 707. All of them serve the same geographic area, and the original code is 707. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 707 area code
707 went into service on January 1, 1959, created when it was split from 415. It serves Santa Rosa and the surrounding part of California, and today shares its territory with overlay code 369. For how codes are created, split, and overlaid, see how area codes work.
Is 707 a scam or spam risk?
707 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 707 number on your screen is no guarantee the caller is in Santa Rosa, CA or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other California area codes
Explore more
See every code in California, compare codes across the West region, or view all Pacific Time codes. You can also browse the 7XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
707 area code FAQ
Where is the 707 area code?
The 707 area code is in California, covering north Bay wine country and the North Coast of California, from Vallejo to Crescent City, in the West region.
What cities are in the 707 area code?
Cities in the 707 area code include Santa Rosa, Vallejo, Fairfield, Vacaville, Napa, Petaluma, Rohnert Park, Eureka, Benicia and Ukiah.
What time zone is 707 in?
707 is in the Pacific Time zone.
What is the overlay for the 707 area code?
707 shares its territory with 369. Both codes (369, 707) serve the same area, so 10-digit dialing is required for every call.
When did the 707 area code start?
707 went into service on January 1, 1959.
Do I have to dial 10 digits for 707?
Yes. Because 707 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 707 a toll-free or premium code?
No. 707 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.