Simi Valley, California
Pacific Time Zone (UTC-8) · CA · —
About Area Codes in Simi Valley, California
Simi Valley, 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 Simi Valley 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 Simi Valley, California?
Simi Valley, California uses area codes 805 and 820.
What time zone is Simi Valley in?
Simi Valley is in the Pacific time zone (UTC-8).
Do I need to dial 10 digits when calling Simi Valley?
Yes, all local calls in Simi Valley 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 Simi Valley?
Other cities sharing area code 805 with Simi Valley include Atascadero, Camarillo, Goleta, Lompoc, Moorpark, among others.
Simi Valley, CA · Pacific Time Zone