669 Area Code — San Jose, CA
Area code 669 serves San Jose and 2 other cities in California. Local time follows America/Los_Angeles. It overlays with 408, so 10-digit dialling is required.
- State
- California
- Primary city
- San Jose
- Timezone
- America/Los_Angeles
- In service since
- 2012
- Type
- Overlay
- Overlay codes
- 408
Overlay of 408
Cities Served by 669
The 669 area code covers 3 cities and communities in California.
- San Jose
- Sunnyvale
- Santa Clara
About Area Code 669
Area code 669 is a North American Numbering Plan (NANP) area code that has been in service since 2012. It is administered by NANPA on behalf of the FCC and serves the California region anchored on San Jose.
669 is an overlay code, which means it shares its geographic boundaries with one or more existing area codes (408). Overlays are created when a region exhausts the supply of phone numbers in its original area code. Within an overlay region, residents must dial all 10 digits even for local calls, because the same 7-digit number can exist under multiple area codes.
Mobile numbers in 669 are portable: a person who moved away from San Jose may still carry a 669 mobile number on their device. If you receive an unexpected call from a 669 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 (408). See the related codes section below to explore the rest of California.
Other California Area Codes
Continue exploring the California numbering plan.
669 Area Code FAQ
Where is area code 669?
Area code 669 is located in California, primarily serving San Jose and surrounding cities including Sunnyvale, Santa Clara. The region operates on PT (America/Los_Angeles) time.
What state is 669 area code?
669 is a California area code. It was put into service in 2012 as an overlay and shares its geographic footprint with overlay code 408.
Is 669 a scam area code?
669 is a legitimate North American area code allocated by NANPA to California. Like any geographic area code, scammers sometimes spoof 669 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 669 use?
Area code 669 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 669 phone number?
Yes. Use the reverse lookup widget above to enter a full 669 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 669 and 408?
669 and 408 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.