Thousand Oaks, California Area Code

Thousand Oaks, CA Area Codes are

Thousand Oaks, CA is officially utilizing two area codes which are area codes 805 and 820.

In addition to Thousand Oaks, CA area code information read more details about area code 805, area code 820 and California area codes.

Thousand Oaks, CA is located in Ventura County and observes the Pacific Time Zone. View our Times by Area Code tool.

California Area Code Map