Area codes in Napa, California
Napa, California uses 2 area codes — 707 and 369. The main Napa area code is 707.
Area codes serving Napa
Phone numbers in Napa are written as ten digits — for example (707) 555-0190 — and fall in the Pacific Time zone.
How Napa came to have 2 area codes
The original Napa area code is 707, in service since 1959. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 369 (2023). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Napa now uses all 2 codes and every local call is dialed with ten digits.
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More cities in California
- Los Angeles area codes
- San Diego area codes
- San Francisco area codes
- Sacramento area codes
- San Jose area codes
- Fresno area codes
- Long Beach area codes
- Oakland area codes
Frequently asked questions
What is the area code for Napa?
The main area code for Napa, California is 707. Napa is now served by 2 area codes in total: 707, 369.
How many area codes does Napa have?
Napa has 2 area codes: 707, 369.
Why does Napa have more than one area code?
As Napa used up the numbers available in its original area code (707, in service since 1959), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Napa number?
Dial all 10 digits — the area code (707 or 369) 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.