Area codes in Davis, California
Davis, California uses 2 area codes — 530 and 837. The main Davis area code is 530.
Area codes serving Davis
Phone numbers in Davis are written as ten digits — for example (530) 555-0190 — and fall in the Pacific Time zone.
How Davis came to have 2 area codes
The original Davis area code is 530, in service since 1997. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 837 (2025). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Davis now uses all 2 codes and every local call is dialed with ten digits.
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Nearby cities
- Woodland area codes
- Sacramento area codes
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- Roseville area codes
- Rocklin area codes
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More cities in California
- Los Angeles area codes
- San Diego area codes
- San Francisco area codes
- San Jose area codes
- Fresno area codes
- Long Beach area codes
- Oakland area codes
- Bakersfield area codes
Frequently asked questions
What is the area code for Davis?
The main area code for Davis, California is 530. Davis is now served by 2 area codes in total: 530, 837.
How many area codes does Davis have?
Davis has 2 area codes: 530, 837.
Why does Davis have more than one area code?
As Davis used up the numbers available in its original area code (530, in service since 1997), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Davis number?
Dial all 10 digits — the area code (530 or 837) 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.