Area Code Lookup
What Area Code Is Simi Valley?
Area code 805 · California
Simi Valley uses area code 805. It is located in California.
Area Code Serving Simi Valley
Frequently Asked Questions
What area code is Simi Valley?
Simi Valley uses area code 805. It is located in California.
How do I call Simi Valley from outside the US?
To call Simi Valley from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-805-XXX-XXXX). The +1 is the country code for all NANPA countries.