Geographic Regions and Area Codes

Area Code 669 is located in the state of California, primarily serving the city of San Jose and surrounding areas in Silicon Valley. The major cities covered by this area code include:

  • San Jose
  • Fremont
  • Sunnyvale
  • Cupertino
  • San Martin
  • Santa Clara

The area code spans across Santa Clara County and parts of Alameda County. It is an overlay for the existing 408 area code and covers most of Santa Clara County and Northern Santa Cruz County. Surrounding area codes include 209, 510, 650, 831, and 925.