Area Code Lookup
What Area Code Is Sierra Vista?
Area code 520 · Arizona
Sierra Vista uses area code 520. It is located in Arizona.
Area Code Serving Sierra Vista
Frequently Asked Questions
What area code is Sierra Vista?
Sierra Vista uses area code 520. It is located in Arizona.
How do I call Sierra Vista from outside the US?
To call Sierra Vista from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-520-XXX-XXXX). The +1 is the country code for all NANPA countries.