Area codes in Sierra Vista, Arizona
Sierra Vista, Arizona uses area code 520. The main Sierra Vista area code is 520.
Area codes serving Sierra Vista
Phone numbers in Sierra Vista are written as ten digits — for example (520) 555-0190 — and fall in the Mountain Time (Arizona, no DST) zone.
All Arizona area codes · Is a Sierra Vista call a scam?
Nearby cities
- Tucson area codes
- Casa Grande area codes
- Gilbert area codes
- Chandler area codes
- Mesa area codes
- Tempe area codes
- Scottsdale area codes
- Phoenix area codes
More cities in Arizona
- Glendale area codes
- Yuma area codes
- Flagstaff area codes
- Peoria area codes
- Prescott area codes
- Surprise area codes
- Lake Havasu City area codes
- Kingman area codes
Frequently asked questions
What is the area code for Sierra Vista?
The main area code for Sierra Vista, Arizona is 520.
How many area codes does Sierra Vista have?
Sierra Vista has 1 area code: 520.
How do you dial a Sierra Vista number?
Dial all 10 digits — the area code (520) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.