Area codes in Monterey, California

Monterey, California uses area code 831. The main Monterey area code is 831.

Area codes serving Monterey

Phone numbers in Monterey are written as ten digits — for example (831) 555-0190 — and fall in the Pacific Time zone.

All California area codes · Is a Monterey call a scam?

Nearby cities

More cities in California

Frequently asked questions

What is the area code for Monterey?

The main area code for Monterey, California is 831.

How many area codes does Monterey have?

Monterey has 1 area code: 831.

How do you dial a Monterey number?

Dial all 10 digits — the area code (831) 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.