Area Code Lookup
What Area Code Is Parkfield?
Area code 820 · California
Parkfield uses area code 820. It is located in California.
Area Code Serving Parkfield
Frequently Asked Questions
What area code is Parkfield?
Parkfield uses area code 820. It is located in California.
How do I call Parkfield from outside the US?
To call Parkfield from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-820-XXX-XXXX). The +1 is the country code for all NANPA countries.