San Jose, California
Area code 669
Where Is Area Code 669?
Area code 669 serves San Jose and nearby parts of Santa Clara County in Northern California. It is in the South Bay region of the San Francisco Bay Area. This area code works as an overlay for the same region served by area code 408.
Area code 669 covers major cities and communities such as San Jose, Sunnyvale, Santa Clara, Cupertino, Campbell, Los Gatos, Milpitas, Morgan Hill, and Saratoga. It also serves parts of unincorporated Santa Clara County. The code is tied closely to Silicon Valley, one of the best-known technology regions in the United States.
The region includes notable places such as downtown San Jose, the Santa Clara Valley, and the Diablo Range foothills to the east. It also includes major destinations like Levi's Stadium in Santa Clara, the Winchester Mystery House in San Jose, and the campuses of major technology companies across Silicon Valley.
History of Area Code 669
Area code 669 was created as an overlay for area code 408. The California Public Utilities Commission approved the overlay in 2011, and 669 entered service on November 20, 2012. New phone numbers in the 408 region could then be assigned either 408 or 669.
Area code 408 itself dates back to 1959, when it was split from area code 415. The overlay happened because the region needed more phone numbers as population and device use grew. The rise of mobile phones, fax lines, and other telecom services increased demand across San Jose and the rest of Santa Clara County.
Key Facts About Area Code 669
- Area code 669 is in California, and its best-known city is San Jose.
- Area code 669 serves the same numbering plan area as area code 408 in Santa Clara County.
- Area code 669 is in the Pacific Time Zone.
- Area code 669 is an overlay area code, not an original 1947 area code.
- Area code 669 entered service on November 20, 2012.
- The California Public Utilities Commission approved the 669 overlay in 2011.
- The area includes San Jose State University, Santa Clara University, and Levi's Stadium in Santa Clara.
- The 669 and 408 service area sits in Silicon Valley, a major center for the technology industry.
Frequently Asked Questions
What state is area code 669 in?
Area code 669 is in California.
What major cities use area code 669?
Major cities that use area code 669 include San Jose, Sunnyvale, Santa Clara, Cupertino, Campbell, Milpitas, Morgan Hill, Saratoga, and Los Gatos.
Is area code 669 a toll-free number?
No. Area code 669 is a geographic area code for San Jose and nearby parts of Santa Clara County.
Last updated: April 2026