Thousand Oaks, California
Pacific Time Zone (UTC-8) · CA · —
About Area Codes in Thousand Oaks, California
Thousand Oaks, California is served by 2 area codes: 805, 820. When multiple area codes serve the same geographic area, it typically indicates overlay codes have been added to accommodate growing demand for phone numbers. All local calls within Thousand Oaks require 10-digit dialing. The city is in the Pacific time zone (UTC-8).
Other cities in area code 805
Frequently Asked Questions
What area code is Thousand Oaks, California?
Thousand Oaks, California uses area codes 805 and 820.
What time zone is Thousand Oaks in?
Thousand Oaks is in the Pacific time zone (UTC-8).
Do I need to dial 10 digits when calling Thousand Oaks?
Yes, all local calls in Thousand Oaks require 10-digit dialing because the area is served by multiple overlay area codes.
When was area code 805 created?
Area code 805 was established in 1957 as a geographic split from a larger area code region to serve the growing population.
What cities share area code 805 with Thousand Oaks?
Other cities sharing area code 805 with Thousand Oaks include Atascadero, Camarillo, Goleta, Lompoc, Moorpark, among others.
Thousand Oaks, CA · Pacific Time Zone