707 Area Code — Santa Rosa, CA
Area code 707 serves Santa Rosa and 4 other cities in California. Local time follows America/Los_Angeles. It overlays with 369, so 10-digit dialling is required.
- State
- California
- Primary city
- Santa Rosa
- Timezone
- America/Los_Angeles
- In service since
- 1959
- Type
- Geographic
- Overlay codes
- 369
Cities Served by 707
The 707 area code covers 5 cities and communities in California.
- Santa Rosa
- Vallejo
- Napa
- Fairfield
- Eureka
About Area Code 707
Area code 707 is a North American Numbering Plan (NANP) area code that has been in service since 1959. It is administered by NANPA on behalf of the FCC and serves the California region anchored on Santa Rosa.
707 now shares its territory with an overlay code (369). 10-digit dialling is required for local calls within this region because the same 7-digit number can be assigned under either code.
Mobile numbers in 707 are portable: a person who moved away from Santa Rosa may still carry a 707 mobile number on their device. If you receive an unexpected call from a 707 number, run it through the reverse lookup tool above for the most accurate, free identification.
If you live or do business in California, you may also interact with neighbouring or overlay codes (369). See the related codes section below to explore the rest of California.
Other California Area Codes
Continue exploring the California numbering plan.
707 Area Code FAQ
Where is area code 707?
Area code 707 is located in California, primarily serving Santa Rosa and surrounding cities including Vallejo, Napa, Fairfield. The region operates on PT (America/Los_Angeles) time.
What state is 707 area code?
707 is a California area code. It was put into service in 1959 and shares its geographic footprint with overlay code 369.
Is 707 a scam area code?
707 is a legitimate North American area code allocated by NANPA to California. Like any geographic area code, scammers sometimes spoof 707 numbers — judge each call by content (urgent demands, unfamiliar transfers) rather than the area code alone. Run the specific number through our reverse lookup if you're unsure.
What time zone does 707 use?
Area code 707 operates on PT (America/Los_Angeles). Numbers in this area code follow standard California time-zone rules including any daylight-saving transitions for that region.
Can I look up a specific 707 phone number?
Yes. Use the reverse lookup widget above to enter a full 707 number. NumLocation returns the line type (mobile, landline, VoIP), carrier, rate-center city, and any public listings tied to the number — free.
What's the difference between 707 and 369?
707 and 369 cover the same California geographic area as overlay codes. Calls between them are local, but you must dial all 10 digits. New phone numbers in this region are assigned from either pool depending on what's available with the carrier at signup.